Asphalt Pro - November 2014

november 2014

Crush, Screen Aggregates, rAP

Fracture Silica WorriesSuperpave out West

Sync Plant Powerback Truck Up

Safe Donations

Conyers Family Crushes on the Go

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contents

On the CoverCrushing recycle and demolition material in the Southeast is only good business if you do it right. For the Conyers Family of Albany, Ga., they’ve been doing it right for 11 years. See related article on page 17.

NOVEMBER 2014

Crush, Screen Aggregates, RAP

Fracture Silica WorriesSuperpave Out West

Sync Plant PowerBack Truck Up

Safe Donations

Conyers Family Crushes on the Go

DePArTmenTS

Editor’s Note5 Solve the Problem

Around the Globe6

Safety Spotlight8 Safety Gets Tax DeductibleBy AsphaltPro Staff

Mix It Up10 California’s Superpave Launch Gets More LiftBy Sandy Lender

Producer Profile17 Conyers Crushes on the GoFrom Powerscreen

Project Management22 Measure ProductionFrom Caterpillar Paving

Equipment Maintenance27 Check the Haul Truck Every ShiftBy John Ball

That’s a Good Idea 44 Don’t Come UnhingedBy John Ball

Equipment Gallery54 Hoover Rents to Expand RAP Crushing Power

Here’s How it Works62 Maxam’s Safe-Sampler™

Last Cut66 Lower Diesel Fuel Price Trend ContinuesBy AsphaltPro Staff

ArTiCleS

30 AAROC Aggregates Separates SourcesKeeping processed RAP in separate stockpiles maintains consistency from excavation to productionBy Tom Kuennen

40 For Your Fracking InformationFrom Hastings Group, Edited by AsphaltPro Staff

42 Crush for Production QualityBy Jarrett Welch

48 Align Power at the PlantParalleled generators reduce costs for asphalt batch plantsBy Jim Siffring

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Solve the ProblemPolitics irritates most people these days, but it’s that time of 2014 when we absolute-ly must pay attention to the political arena. Midterm elections are here and every-one in the asphalt industry should be fully aware of how his or her representatives have voted on transportation and funding issues in the past. While at the Asphalt Contrac-tors Association of Florida annual meeting in September, I visited on the first day with a gentleman who was leaving for the National Asphalt Pavement Association (NAPA) legislative fly-in in Washington the next day. His view on the fly-in was not only nega-tive, but also aggravating. If I were his boss, I’d have sent someone else to talk to leg-islators. You see, his opinion was all Congresspersons were impotent at this time be-cause the upcoming elections render them unwilling to act. Furthermore, he believes nothing will be accomplished after the November elections due to more unwillingness on the part of outgoing representatives.

Yadda yadda yadda. I am sick and tired of the bitching and moaning in this indus-try. Just get engaged and help solve the problem. Yes, I agree wholeheartedly that the members of Congress—on average—act as if they have not yet left Kindergarten. But let’s look at the skill set we learned in Kindergarten. Share your toys. Don’t make fun of other people. Take turns talking. Work together. Help each other. And so on.

You know, when I was a kid in Illinois, one of my friends was deaf. This meant that to communicate with her I had to learn how to sign words, including her name. To this day, I can sign the name Heather. I never thought the onus was on her to learn how to read lips so we could play together. We had a communication difficulty to work around and we just solved the problem because that’s what you did back in 1976, 1977.

Here’s my message for members of the asphalt industry, the transportation con-struction industry at large and The Congress. Solve the problem. I know there are some legislators who don’t care for construction spending. That means the constitu-ents have extra educating to do there. Find a way to communicate to your specific rep. When Dennis Slater of the Association of Equipment Manufacturers (AEM) sends out a statement to construction industry members that Congress has to end its habit of governing on a month-to-month basis, he’s talking to the wrong audience. You and I see the damage of short-term monetary infusions; let’s communicate those damages to the Congresspersons who are extending them like gifts meant to appease a spoiled child. We’re not children any longer. Let’s take the lessons from our childhood and build upon them with the facts.

For instance, AEM sent a useful release stating 370,000 jobs are supported by the construction equipment industry. The release shows that the construction equipment industry has grown from $5.5 billion in exports to $19.5 billion during the last decade. It shows a link between infrastructure deficiencies and economy that will cost each American household an average of $4,500 per year by 2020. That is astounding. That is information no representative can merely ignore. That is information you must com-municate. In fact, AEM provides easy-to-share infographics at the “I Make America” facebook account. Did you know your representative of Congress has a facebook ac-count? Start sharing your toys with him or her.

There are many ways to communicate with each other and get the message of high-way funding needs across to the representatives who will vote about the issue. While the message is redundant to those of us living it day in and day out, and that might lead to the pessimistic attitude the gentleman in Florida shared with me in Septem-ber, we can’t let it weigh us down to inaction. Let’s take the tools our Congressmen seem to be lacking and keep sharing the right messages. Sooner or later, we’ve got to solve the problem.

Stay Safe,

Sandy Lender

November 2014 • Vol. 8 No. 2editor's note

602 W. Morrison, Box 6aFayette, MO 65248

(573) 823-6297www.theasphaltpro.com

GrOup puBlisherChris harrison

chris@ theasphaltpro.com

puBlishersally shoemaker

[email protected](573) 823-6297

editOr

sandy [email protected]

(239) 272-8613

Art direCtOrKristin Branscom

Business MAnAGersusan Campbell

Asphaltpro is published 10 times per year: January, February, March, April/May, June/July,

August, september, October, november and december by Chp holdings, 602 W. Morrison,

Box 6a, Fayette, MO 65248.

Writers expressing views in Asphaltpro Magazine or on the Asphaltpro website are professionals

with sound, professional advice. Views expressed herein are not necessarily the same as the views of Asphaltpro, thus producers/contractors are

still encouraged to use best practices when implementing new advice.

suBsCriptiOn pOliCy: individual subscriptions are available without charge in the united sates,

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One year subscription to non-qualifying individuals: united states $90, Canada and Mexico $125.00.

For the international digital edition, visit theasphaltpro.com/subscribe-2. single copies available $17 each.

www.theasphaltpro.com 5

Industry News and Happenings from Around the WorldchileCONEXPO Latin America 2015 will be held Oct. 21 through 24 in Santiago, Chile. Get informa-tion about the educational conference portion of the event at www.khl.com/larb and informa-tion about the trade show at www.conexpola-tinamerica.com.

inDiAIndia exported 9,526 megatonnes of bitumen in July with another 9,450 megatonnes of bitumen exported to Malaysia specifically in the month of August. Source: Petrosil’s Bitumart

UniTeD STATeS• Like us at www.facebook.com/AsphaltPro-

Magazine. Follow us @AsphaltPro.• VoteNovember4.It’syourrightandyourre-

sponsibility.

ColorADoThe Dow Jones Sustainability Index for 2014/2015 listed Atlas Copco of Commerce City, Colo., as one of the top companies in its indus-try. The DJSI World Index assess some 2,500 public companies from around the world, and only 10 percent of those get included in the in-dex, which helps identify and measure those that represent an attractive investment opportuni-ty. The companies were also analyzed on factors such as climate strategy, labor practices, occupa-tional health and safety, and strategy for emerg-ing markets.

FloriDAMake sure you’re registered to attend the 60th Annual National Asphalt Pavement Association meeting in sunny Florida. This year’s convention takes place on gorgeous Marco Island in South-west Florida from Jan. 25 through 28, 2015, at the Marco Island Marriott. Get more information at www.asphaltpavement.org/annualmeeting.

inDiAnAMark your calendar to join the Asphalt Pavement Association of Indiana (APAI) for its annual win-ter conference this Jan. 7 through 9, 2015. The exhibit hall and networking opportunities will be available the 8 through the 9, as well. Contact Executive Director Bill Knopf if you still need to get your exhibit space. (317) 910-5493.

ioWASave the date for the APAI 59th annual conven-tion Dec. 3 through 5 at the West DesMoines Marriott.Visitwww.apai.net.

mArylAnDTo help the industry achieve new green rating stan-dards, the National Asphalt Pavement Association (NAPA) has created an Environmental Product Dec-larations (EPD) program, which has the goal of pro-viding comprehensive, credible and comparable en-vironmental data to customers. EPDs published from the program will allow pavement decision makers to make informed comparisons about pavements’ en-vironmental impacts. You can learn about EPDs and how to become part of the EPD program at http://as-phaltpavement.org or by contacting [email protected].

massachusettsHastings Group of Boston announces the release of the Civil Society Institute’s Boston Action Research (BAR) report. The report has been released in coop-eration with Environmental Working Group and Mid-west Environmental Advocates and spreads worries involving crystalline silica, among other things. See re-lated article on page 40.

miSSoUriHerzog Contracting Corp., St. Joseph, Mo., was recog-nized for its outstanding corporate worker safety pro-grams during the 2014 American Road & Transporta-tion Builders Association’s (ARTBA) national con-vention in September. The company won an ARTBA Transportation Development Foundation (TDF) con-tractor safety award. Winners were selected based on their achievements as evidenced by recordable rates below the industry average and low workers’ compen-sation experience modifier rates. Judges evaluated the entries based on corporate safety culture, operation-al safety plans and worker training programs. Herzog won in the category of 500,001 to 1,000,000 hours.

neW yorkNick Ivanoff, president and CEO of Ammann & Whit-ney based in New York, N.Y., has been elected the 2014-2015 chairman of the American Road & Transportation Builders Association (ARTBA). Ivanoff has outlined several key goals for his year as chairman: driving the transportation funding policy debate in the Nation’s Capital; lead the charge for a boost in federal trans-portation investment as part of the reauthorization of MAP-21; leverage the 20th anniversary of the ARTBA Foundation’s Young Executive Development Program to expand leadership programs; hit membership de-velopment; bring new initiatives in the safety and risk management arenas to light.

ohioKonecrances of Springfield, Ohio, hosted the 2014 Crane Users Conference in Galveston, Texas, in mid-September with 40 end users from 22 different com-

panies attending. The conference offers a platform for crane users to discuss industry solutions and provide an opportunity to network throughout compliance, parts, service technologies and training. Shortly after-ward, Konecranes launched its Quick Ship Program for industrial overhead cranes. For more information, contact Edward Di Cesare at (905) 332-5707.

TexASA wide-ranging collection of presenters on various topics related to the recycling of construction and de-molition (C&D) materials is now part of a new C&D Speakers Bureau organized by the Construction & De-molition Recycling Association (CDRA). On the cur-rent roster are foremost experts on recycled concrete, drywall, wood fuel, construction plastics and asphalt shingles. In addition, members of the CDRA’s board of directors, the majority of whom own and operate C&D recycling facilities, are available to discuss regional C&D issues.

washiNgtoNMicrosoft will host the fourth annual Dr. J. Don Brock “TransOvation™ Workshop” Nov. 17 through 19 near Seattle. The workshop will look at the way “big data” impacts transportation systems in cities and towns, and when highways might be fully equipped with In-ternet capability.

washiNgtoN, D.c.Groundbreaking women in transportation received high honors from the Transportation Development Foundation (TDF) of the American Road & Transpor-tation Builders Association (ARTBA) in September. Linda Figg is the president, CEO and director of bridge art for Figg Engineering Group (FIGG) and received the Ethel S. Birchland Lifetime Achievement Award. Katherine Nees, P.E., has more than 30 years of experi-ence managing, financing, procuring, planning and de-signing construction projects totaling more than $25 billion in Texas and across America and now serves at the Texas Department of Transportation’s Dallas Dis-trict. She also received the Ethel S. Birchland Lifetime Achievement Award. Eirini Kastrouni at the Univer-sity of Maryland in College Park received the Future Industry Leader Spotlight Award, as did Sadaf Khos-ravifar, also at the U of M. Kastrouni is pursuing her doctorate in civil engineering where she is focused on quantifying the economic benefits of multi-modal transportation infrastructure projects and designing an equitable mileage-based user fee scheme to replace or complement traditional fuel taxes. Khosravifar is pursuing a doctorate in geotechnical and pavement engineering; in 2013 she received a fellowship and ac-ceptance to the Clark School of Engineering Future Faculty Program.

around the globe

6 november 2014

Untitled-1 2 7/7/14 2:04 PM

safety spotlight

Safety Gets Tax Deductible By AsphAltprO stAFF

While charitable giving is something members of the asphalt industry consider throughout the year, the last two months take on added importance. The idea

that we can get a higher tax deduction if we “up” our charita-ble giving before the end of 2014 is a nice idea. The volunteers at Construction Angels remind us that their national organiza-tion was created to provide immediate financial assistance to the families of all types of construction workers who have lost their lives while working on a jobsite, and that donations to make that assistance possible are tax-deductible. In fact, the group held its third annual Charity Golf Tournament with a sold out crowd in September for the purpose of fundraising. The guest and spon-sorship list for this event reads like a who’s who of actively in-volved charitable givers covering every expense. Check this out.

Photo Sponsor = Michael of Limperis PhotographyShirt Sponsors = DC Products, Ferreira Construction, Tree

Cycles Land ClearingLunch Sponsors = The de Moya GroupBreakfast Sponsors = Atlantic Concrete Washout, Current

Builders, Ranger ConstructionHole-in-One Sponsors = Preferred Materials, Inc. & MidSouth

Paving, Inc.; Pompano Lincoln/Ford Dealership; County Line Chiropractic Medical & Rehab Centers

Food & Beverage Sponsors = Blue Martini; Spanx “The Hog” BBQ; Flanigan’s Bar & Grill; Red Bull; Bru’s Room; Hooters; JB’s

on the Beach; Speedy Concrete Cutting; Builders Notice; Gex-pro; Whitehead Insurance & Bonding

Beer Cart Sponsors = Blueline Rentals, Russell EngineeringGoody Bag Sponsors = The Blue Book of Building and Con-

struction; Saferite SolutionsThe group also brought in Angel Sponsors and Hospitality

Sponsors and more.Once an event is complete, Construction Angels volunteers

have the next one on the roster, so be sure to visit their website at www.constructionangels.us and click on the upcoming events graphic. Not all events take place in Florida, although the orga-nization was founded in Florida. And not all beneficiaries are in Florida, although a frightening number of workers have lost their lives on Florida roadways in 2014. Construction workers all across the United States can have assurance that Construction Angels will strive to assist their families, should the unthink-able occur while they’re on the job. The way to help this organi-zation meet that lofty goal is to get involved either during one of its events or through a monetary donation. At this time, Presi-dent and Founder Kristi Ronyak has set up a method of donating through social media.

You can read a bit more about the organization, watch and share a short video about the incredible importance of work zone safety, and donate securely through the GoFundMe cam-paign at www.gofundme.com/ConstructionAngels.

nAPA CArethe national Asphalt pavement Association Care Benevolent Fund, which is run through the nApA research & education Foundation, inc. (nApA-reF), is a program to assist families of asphalt industry workers who have lost their lives while on the job.

the nApA Care committee has had to make sev-eral gifts in kind since it was enacted—december 2011. due to the legal environment in which we all do business, exact information isn’t available, and families truly need time to grieve rather than share personal stories with a magazine. the posi-tive news is that when families have needed help, the nApA Care program has been able to provide it in the form of a monetary gift that does not have to be claimed as income. As roger sandberg of the nApA Care committee shared, when a loved one is lost, the family doesn’t need to be bothered with the worries of paying bills while new or surprise bills pop up. it’s at that time that the nApA Care committee can write a check for $4,000 or $5,000, provide it to the grieving family and say, “here, take care of immediate needs and don’t worry about money right now.”

to be a part of the family that helps make this possible, visit the nApA Care table near the registration area at the next nApA meeting. Call (888) 468-6499 to request a donation form or navigate to the nApA Care: emergency Benevolent Fund page un-der the research and education tab, where you can download a donation form at www.asphaltpavement.org.

stop by a nApA Care table at any national meeting, World of Asphalt, or other nApA event to fill out a donation form. Consider challenging a neighboring/competing company to match your donation.

8 november 2014

Untitled-1 1 7/7/14 1:46 PM

mix it up

California’s Superpave Launch Gets More Lift By sAndy lender

Members of the asphalt industry have at times since about 1998 scratched their heads and wondered why the California Department of Transportation (Cal-

trans) continued to wait to adopt a Superpave spec. Its use is so widely accepted across North America that we don’t even spell out what Superpave stands for any longer or explain its conception. We’ll take a quick look back and then discuss not only California’s cautious step into the testing-riddled arena, but also how that step forward is progressing.

First, the Superior Performing Asphalt Pavements (Super-pave) initiative came about from Strategic Highway Research Program (SHRP) funding. It essentially allowed state depart-ments of transportation (DOTs) a binder specification to tar-get the pavement distresses different areas of the country ex-perienced in their pavements. The three distresses were fa-tigue cracking, rutting and thermal cracking. Through the use of performance graded (PG) binders (See Sidebar) and perfor-mance related testing, pavement design engineers in different areas of the country could address the specific distress they saw in their region.

This is a simplified explanation for a complex system, as Cal-trans officers would likely agree. A Superpave sub-task group of Caltrans officials, members of the asphalt industry in Cali-fornia and learned individuals from academia formed in 2012 and has put together a draft spec and some pilot projects. The group initially made a list of 85 concerns it had collectively about the Superpave process.

Since the department’s announcement in 2011 of its transi-tion to using Superpave, it has had to extend the target imple-mentation date from July 2013 to July 2014. Now it’s November and Section 39 of the Revised Standard Specifications (RSS) in California requires a Superpave gyratory compactor (SGC) for mix design and a Hamburg Wheel Track Tester to test a mix for acceptance.

It has begun.While the Superpave sub-task group had resolved the vast

majority of concerns originally identified with its Superpave spec, the group still had about a dozen to deal with this sum-mer. As of its August meeting, the group also had a senior man-ager and friend to industry retiring from Caltrans.

As originally reported in the California Asphalt Insider, an official publication of the California Asphalt Pavement Asso-ciation (CalAPA), “Caltrans Construction Chief Mark Leja, a champion of partnering with the construction industry who was recently named to head a task force on materials testing is-sues, has announced he will wrap up his career in state service Oct. 31….As Division Chief of Construction for Caltrans, Leja is responsible for establishing statewide construction and contract administration policies and implementing Caltrans construc-tion projects, which recently topped a record $11 billion worth of

projects under construction, including the high-profile San Fran-cisco-Oakland Bay Bridge…”

Russell Snyder is the executive director of CalAPA and has known Leja for nearly 20 years. “Mark Leja is widely respected in

the superpave gyratory compactor. photo courtesy of Gilson Co.

10 november 2014

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mix it up

transportation and construction industry circles as a visionary leader with a high degree of integrity and an impressive work eth-ic,” Snyder said. “Mark is passionate in his desire to solve prob-lems and deliver complex transportation projects, and we wish him well in his future endeavors.”

As of the August meeting, the group had the following high-profile items on its mind, as reported in the California Insider:

ISSUE: Maximum temperature for virgin ag-gregate during production when using Re-claimed Asphalt Pavement (RAP). STATUS: Industry has expressed concern that the max-imum temperature may limit the use of RAP. A working group of Caltrans and industry personnel has been formed to discuss this is-sue further.

NOTE: The current Caltrans Spec (Section 39) states:39-1.02H(1) GeneralAggregate temperature must not be more than 375 degrees F when mixed with the asphalt binder. Temperature requirements do not apply to RAP.

Also as reported in the California Insider,ISSUE: Definition of “minor asphalt” and the need for AASHTO T283 testing. STATUS: Cal-trans will send a DIB (design information bul-letin) to district materials engineers noting that “minor asphalt” is 1,000 tons or less and that is does not require Hamburg or AASHTO T283 testing. (Pending distribution of the DIB, industry should refer Caltrans project engi-neers to Joe Peterson, Caltrans Chief of Road-way Materials Testing at headquarters for clar-ification.)ISSUE: Use of cores vs. nondestructive densi-ty gauges. STATUS: Caltrans will continue to require cores for density measurement.ISSUE: Mix lay-down temperatures for WMA technologies. STATUS: Minimum ambient and surface temperatures apply to all “Type A” mixes.

NOTE: The current Caltrans Spec (Section 39) gives a table for spreading Type A mixes. Here are the values shown at 39-2.03 Construction:If the compacted layer is less than 0.15 feet in thickness, the minimum atmospheric temp at which you are allowed to pave with a modified as-phalt binder is 50oF and minimum surface temp is 55oF. If the compacted layer is between 0.15 and 0.25 feet in thickness, the minimum atmospher-ic temp at which you are allowed to pave with a modified asphalt binder is 45oF and minimum surface temp is 50oF.

At this time, Snyder reports, “there have been some pilot proj-ects and more are on the way. Caltrans and industry are evaluat-ing the results of the pilot projects to see if adjustments in the specifications should be made. It should be noted that meeting these new specifications is not easy and has required consider-able effort and investment from asphalt producers still not fully recovered from a severe economic downturn in California.”

the wheel track tester. photo courtesy of Gilson Co.

12 november 2014

mix it up

GrADe yoUr binDerto specify a performance graded (pG) asphalt binder, first determine the temperature extremes under which the pavement must perform. A grade is determined by indicating the high and low temperatures for performance, and those temperatures are listed in Celsius.

For example, a pG 64-22 to perform at a high temperature of 64°C and a low temperature of -22°C. the grading system uses increments of 6°C for the high and low temperature designation. the performance-Graded Binder spec [typically] uses high temperatures of 58, 64, 70, 76 and 82 and low temperatures of -16, -22, -28 and -34. the high temperature designation represents the 7-day average high pavement temperature. the low temperature designation represents a single occurrence low pavement temperature.

the climate is a statistical distribution. there is an average 7-day high average pavement temperature and average low pavement temperature and associated standard deviations to account for yearly variations. the shrp researchers recognized this and integrated this into the pG selection process. to be able to select a binder for any location, know the climate distribution and choose an acceptable risk factor of exceeding the design temperatures. the climate of the location, risk or reliability factors, and the standard grade temperatures will determine the actual pG binder to choose.

the engineer can choose to alter the climate grade by using the additional factors of traffic and loading. if there is slower-moving traffic, the rutting potential is higher and the high temperature portion of the binder grade can be “bumped” up one grade (i.e. 64 to 70). if there is standing traffic, the rutting potential is even more, and the high temperature grade can be “bumped” up two levels over the standard climate-based grade (i.e. 64 to 76). in all these modifications, the low temperature grade remains the same.

source: texas department of transportation

TeST yoUr binDerthe equipment used in the specification is several types of ovens (for aging procedures), a dynamic shear rheometer, a bending beam rheometer and a direct tension tester. Asphalt binders are tested in a manner that simulates the stage in pavement life in which various distresses occur. these stages are unaged, simulated aging through the hot mix plant, and simulated long-term aging in the roadway.

the rolling thin Film Oven (rtFO) simulates the binder aging that occurs through the asphalt plant. We measure the stiffness of the binder with the dynamic shear rheometer. this is to guard against rutting. We know that as asphalts age in the pavement, they get harder and harder (stiffer and stiffer). if the binder is stiff enough to avoid rutting when placed, it will most likely not rut later in life. the pressure Aging Vessel uses rtFO-aged binder to simulate long-term aging. this conditioning simulates approximately 5 to 8 years aging in the pavement. this is the time in the pavement’s life where we are concerned about fatigue and thermal cracking. the dynamic shear rheometer measures stiffness to indicate the binder’s fatigue resistance and the Bending Beam rheometer measures its resistance to thermal cracking. the direct tension test is used under some circumstances to indicate that even though a binder is otherwise too stiff at low temperatures, it is resistant to low temperature cracking if it is capable of enduring at least 1 percent strain at low temperatures.

there are two mechanisms for determining the pG binder grade: classification and verification.

When the pG grade is unknown, we conduct classification. this involves a trial and error process, performing the tests at various pG temperatures to bracket the spec temperatures at which the material passes and fails to meet the spec requirements. this process usually will require 3 to 5 days elapsed time.

When we are told what the pG grade is supposed to be, we conduct verification. in this process, we already know the temperatures of test. We test at the spec temperatures only, with either a passing or failing result. the elapsed time for complete testing will be 1.5 to 2.5 days.

We can verify the high temperature portion of the pG binder by testing the rtFO residue with the dynamic shear rheometer. We know the test temperature, so only need to conduct one dsr test. the time schedule for this testing will be: sample preparation—approximately 1 hour (oven heating to 135oC and stirring approximately 5 minutes with mechanical stirring device if needed); rtFO aging—85 minutes; and dsr testing—30 minutes. this results in a total elapsed time of approximately 3 hours. person-hour requirements are approximately 1 hour.

source: texas dOt

The good news in all of this is the march toward the use of Superpave. With the introduction of the Superpave binder spec in California, asphalt professionals are seeing an uptick in expenses as their colleagues around the country saw in the late ’90s, but they are also seeing an uptick in quality control and quality, long-lasting pavements.

“The concrete industry is always aggressive in market-ing their product in California, so that will not change,” Sny-der said. “However, the asphalt industry is raising the bar for quality, durability and value with these new specifications that build on decades of research and practical experience. We’re also pleased that the new specifications are the result of a col-laborative effort between Caltrans, industry and academia. The real winners, however, will be the motorists, who will no-tice a smoother ride and will face fewer construction delays because pavements will last longer.”

14 november 2014

5

www.agg1.org

The APA is a partnership of the Asphalt Institute, National Asphalt Pavement Association and the State Asphalt Pavement Associations.

Just-in-time manufacturing, farm-to-table freshness, guaranteed overnight delivery — as American business moves, so do the demands on our nation’s roads. Congestion and traffic delays cost the trucking industry $9.2 billion a year.* Rough roads increase vehicle wear and tear.† It all adds to business costs and purchase prices.‡ Asphalt pavements are easy to maintain cost-effectively, ensuring maximum performance with minimal delay for truckers and everyone who relies on them. Smoother, faster, fewer delays…that’s drivability. That’s asphalt.

L E A R N M O R E A T W W W. D R I V E A S P H A LT. O R G

DRIVABILITY

35 MILLION TONS OF GOODS DELIVERED TO 29 MILLION BUSINESSES EACH DAY. THANKS,

* ATRI, Cost of Congestion to the Trucking Industry, 2014 • † TRIP, Bumpy Roads Ahead, 2012 • ‡ TTI, Urban Mobility Report, 2012

16 november 2014

producer profile

Conyers Crushes on the GoFrOM pOWersCreen

“We travel all over Florida, Georgia and Alabama for concrete and asphalt

rubble crushing jobs of 10,000 tons and up,” Scott Conyers said. He’s the equip-ment vice president for Conyers Con-crete and Asphalt Services, Inc., Albany, Ga. He described a rugged, demanding and competitive business that his family has worked in for the past 11 years.

“We are constantly on the go, with no shut-down time between jobs,” Opera-tions Vice President Josh Conyers said.“When we finish one job, we pack up and move on to the next one immediately. We simply have to keep moving. It’s pretty grueling—for us and for the equipment. We operate from 6 a.m. until 7 p.m. five days a week, 12 months a year. In addition to great equipment, we also need crews

that know how to operate and maintain the equipment properly. With care and good maintenance, equipment will give many years of dependable service.”

Danny and Sue Conyers founded the company in 1976. Danny is president and also worked until recently in on-site crushing operations. Sue is the owner and office manager. Their two sons, Josh and Scott, run a four-man operation that

the powerscreen Warrior 1800 screen and terex pegson 4242sr impact crusher process asphalt rubble to produce ¾-inch product for Conyers Concrete and Asphalt services, inc., Albany, Ga. the Warrior 1800 is designed for high-capacity dry screening, 3-way screening and stockpiling. the 4242sr features a 428 fixed-hammer impactor and includes a screen and stockpiling conveyor.

The APA is a partnership of the Asphalt Institute, National Asphalt Pavement Association and the State Asphalt Pavement Associations.

Just-in-time manufacturing, farm-to-table freshness, guaranteed overnight delivery — as American business moves, so do the demands on our nation’s roads. Congestion and traffic delays cost the trucking industry $9.2 billion a year.* Rough roads increase vehicle wear and tear.† It all adds to business costs and purchase prices.‡ Asphalt pavements are easy to maintain cost-effectively, ensuring maximum performance with minimal delay for truckers and everyone who relies on them. Smoother, faster, fewer delays…that’s drivability. That’s asphalt.

L E A R N M O R E A T W W W. D R I V E A S P H A LT. O R G

DRIVABILITY

35 MILLION TONS OF GOODS DELIVERED TO 29 MILLION BUSINESSES EACH DAY. THANKS,

* ATRI, Cost of Congestion to the Trucking Industry, 2014 • † TRIP, Bumpy Roads Ahead, 2012 • ‡ TTI, Urban Mobility Report, 2012


producer profile

crushes concrete and asphalt, about 50 percent each, in southern Georgia, Ala-bama and Florida. An additional four-man crew crushes asphalt only, mostly in and around Birmingham, Ala.

The Conyers’ company started out do-ing grading and landscape work. They quit that business about 11 years ago when they saw some recycling opportunities that excited them.

“We jumped in with both feet,” Danny Conyers said emphatically. “We figured we work hard, we’re honest, we know how to run a business, and we have a good rep-utation. So we were confident we could switch to recycling and be successful. Problem was we didn’t know much about crushing and screening equipment, and we didn’t have the expertise our expe-rienced competitors had. But we found both in Powerscreen of Florida and their representative, Ken Furey.

“We had heard good things about them,” Danny added. “So we got in touch.

Ken sold us on Powerscreen... And he and others at the dealership got us started with a lot of very good advice and direc-tion. We still count on them for counsel on recycling operations.”

The concrete/asphalt crushing opera-tion uses a Terex® Pegson 4242SR impact crusher that the company purchased in 2002, a Powerscreen® Premiertrak™ 400 jaw crusher purchased in 2008, a Power-screen Warrior™ 1800 screen plant pur-chased in 2011, and a Powerscreen radial stacker. The impactor is used exclusively for asphalt; the jaw is exclusively for con-crete. The Warrior screen is used for both.

The asphalt crushing operation uses a Powerscreen Trakpactor™ 320SR im-pactor purchased in 2013, a Warrior 1800 screen purchased in 2011, and two Power-screen radial stackers.

“We run our equipment hard,” Scott said. “But we take very good care of it. Service on the Powerscreen machines is pretty quick and simple, but you have to be diligent about it; and we are. So when we trade in a machine, Ken Furey is able to give us a great deal on a new machine. And whoever buys it from him gets good value, too.

“We’ve never worn out a Powerscreen machine,” Scott continued. “If we trade it in, it’s because our needs change or Powerscreen comes out with a new mod-el that better suits our needs. We traded in a Chieftain 1400 and a Chieftain 2100 [screen] that were in great shape, for ex-ample, and somebody got a good used buy on them both.”

Josh discussed the company’s need for mobility. “When you’re on the go as much as we are, you need efficient crushers and screens that are highly mobile. Current-ly we’re at a site where we’re crushing as-phalt only—about 20,000 tons total—

From left, Vice president-equipment scott Conyers, president danny Conyers, Owner sue Conyers, Vice president-Operations Josh Conyers

“we simply haVe to keep moViNg.”—Josh coNyers

18 november 2014

When Astec parts salesman GREG PAINTER is not calling on customers to support their parts needs, you can find him on the water fishing or in the woods hunting. But when you call, he’ll trade that fishing hat for a hard hat, because he is always your parts man.

THE FACES OF ASTEC PARTS

An ASTEC parts salesman knows that being successful in his job means that you count on him to deliver when needed. So when you need a part, he will take the call because no matter what else he is, he is always your parts man.

Anyone can stock parts and ASTEC stocks the world’s largest inventory of parts for asphalt plants. But ASTEC doesn’t just stock parts. ASTEC delivers the industry’s best customer service. That is what sets us apart.

Any part, any brand. We can help.

Greg Parts Ad AP_copy rev.indd 1 10/10/14 11:02 AM

producer profile

and that will take two and a half, five-day work weeks, including downtime for refu-eling, checking and cleaning equipment, maintenance of all equipment, lunch breaks, moving equipment on site, and so on. Actual production time averages 250 to 300 tons per hour for either concrete or asphalt, including material scalped off top, crushed, stacked and loaded.”

Scheduling jobs requires knowledge of shut-down and start-up times. Accord-ing to Josh, that’s about four hours or less,

plus travel time. Recently Josh and Scott shut down on one job at 11 a.m., hosed off the equipment, ran it onto a couple of low-boy trailers, drove a short distance to another site, were running by 3 p.m., and crushed 670 tons before quitting time.

Scott said, “That’s how efficient we have to be—in production and moving—in order to be competitive and still make an accept-able profit—especially on smaller jobs. We’ll go to a site for as little as 10,000 tons of con-crete or asphalt. Some jobs involve both ma-terials. An average job is 20,000 to 30,000 tons. Large jobs are 50,000 or more.”

“We’re a small, family owned compa-ny,” Sue Conyers said. “Our name and reputation is on everything we do. We work hard and try our best to give our cus-tomers every benefit we can. It’s worked well for us over the past 11 years in our crushing business. And Powerscreen has been a crucial part of it for us.”

“oUr nAme AnD rePUTATion iS on

eVerythiNg we Do. we work harD aND try

oUr beST To Give oUr CUSTomerS every beneFiT

we caN.”—sue coNyers

Conyers uses their terex pegson Xr400 jaw crusher for concrete recycling applications. the plant is designed for medium scale operators in recycling, demolition, quarrying and mining.

coNyers’ crushersthe 4242sr horizontal impact crusher includes a screen and stockpiling conveyor with magnetic separator. it features a 428 fixed-hammer impactor, a feed opening of 42 inches x 28 inches, a 42-inch rotor width and 42-inch rotor diameter (over hammers), and is designed for primary or secondary applications with concrete and asphalt rubble, demolition debris and aggregates. the unit is rated to produce up to 396 tph, depending on feed material and finished product size.

the premiertrak 400 primary jaw plant is designed for medium scale operators in recycling, demolition, quarrying and mining. it is rated up to 440 tph. it features an hydraulic folding feed hopper with boltless fixing system, hydraulic tilting conveyor system, high-swing jaw, height-adjustable product conveyor and hydraulic folding extended hopper.

the trakpactor 320sr is a mid-sized horizontal impact crusher for recycling, C&d and quarrying. the manufacturer states it is ideally suited to medium hard, mildly abrasive materials. its features include direct drive, a rating up to 350 tph, bolt-in cartridge grizzly feeder with 42-mm nominal spacing, load management system to control feeder speed, hydraulic overload protection, 4-bar rotor (2 full, 2 half), twin apron, and plC control of crusher speed.

20 november 2014

Retrofit

project management

Measure ProductionFrOM CAterpillAr pAVinG

While the production on vari-ous construction jobs may be different, the objective in

measuring production is the same—how much work/in what period of time/at what cost. While that seems like a pretty simple equation, there are so many vari-ables at any given site that barriers to pro-duction can easily be overlooked. Here’s a quick checklist to help spark some think-ing about how you can improve produc-tion on your jobsite.

establish and communicate clear production targets for every shift.One of the biggest challenges on jobsites is keeping the communication lines open between multiple operators and workers. If crew members don’t start the day with a clear idea of what they are to accomplish in what period of time, then there is in-creased risk of them wasting time or in-terfering with others on the job. The big-ger problem is that if you don’t establish clear production targets, what will you use as a benchmark?

review the jobsite layout for efficiency and observe how long it takes to complete tasks.One of the first indications of inefficien-cy in the jobsite layout is when there is lag time in production tasks. Depending on what kind of job it is, you may need to clock actual cycle times or simply moni-

tor the time elapsed between different steps in a job. Monitor and record sever-al cycles to validate the time required. For example, you might note that every 60 minutes, Joe is gone for about 10 minutes to get more materials. You follow him and find that the items he needs have been stacked a good five-minute walk from where they are needed; 10 minutes round trip. For every 10-hour day that Joe works, more than 1.5 hours is spent walking back and forth. Production can be increased by moving the materials closer to the work.

The same principle can be applied to the paving work zone. While you might not be able to physically move an asphalt plant closer to the work site, you can map a truck route that keeps haul trucks out of high-traffic areas where delays in delivery start to add up. Monitor, record and ad-just the plan as necessary.

train smooth operators.If you run excavators digging, loading or bench loading, observe the motion and speed of the machine—the smoother the action, the faster the cycle times. Proper alignment of loaders and trucks will also increase cycle times and production. This is true at the asphalt plant where your

loader operator is vital to smooth deliv-ery of correct aggregate.

Pass match loaders and haulers. You will get the highest production levels by optimizing the pass match of loaders and trucks. It is also important to ensure that trucks are loaded accurately either through on-board payload measurement technology or scales. Overloading trucks can reduce production.• Stresscreatesstructuralfatigueor

failure.• Maintenanceandrepair/replacement

costs increase.• Downtime(causedbyoverloading)

results in loss of production.Under-loading trucks can reduce

production.• Capacitypaidforisnotbeingused.• Availableresourcesareunderutilized,

which reduces efficiency and production.

• Anyincrementalincreaseinproduction directly affects profits; conversely, any decrease in production capacity reduces profits.When you make changes be sure to ob-

serve and identify how much improve-ment has occurred. Combine your obser-vations with any data you may have from machine systems, telematics or scales. The more you observe, measure and ana-lyze, the more you can optimize your pro-duction levels.

you will get the highest ProDUCTion levelS by

optimiziNg the pass match of loaDers aND trucks.

22 november 2014

®

RAP becomes more important to your operation every day. Whether you run a little or a lot, chances are you plan to run even more in the future. ASTEC leads the way with a drum line-up built around helping you utilize RAP.

A S T E C H A S S E V E N D R U M S C O V E R I N G T H E S P E C T R U M F R O M 0 % t o 1 0 0 % R A P U S A G E

0% - 100% RAPwhere do you f i t?

Only Astec has the patented Double Barrel Green® System.

AP NOV14 0TO100 SPREAD.indd 1 10/9/14 1:52 PM

RAP becomes more important to your operation every day. Whether you run a little or a lot, chances are you plan to run even more in the future. ASTEC leads the way with a drum line-up built around helping you utilize RAP.

A S T E C H A S S E V E N D R U M S C O V E R I N G T H E S P E C T R U M F R O M 0 % t o 1 0 0 % R A P U S A G E

0% - 100% RAPwhere do you f i t?

Only Astec has the patented Double Barrel Green® System.

AP NOV14 0TO100 SPREAD.indd 1 10/9/14 1:52 PM

APAI is pleased to provide you with an opportunity to exhibit at our

Annual Winter Conference and Trade Show!

Attendees include 400-500 contractor personnel and 75+ local government agency officials, plus over 50 senior staff from DOT

and FHWA. The Winter Conference features specialized educational programming and committee meetings for plant production and

QC managers, laydown crew supervisors, safety and environmental managers, owners, partners and senior management executives,

project managers and estimators, controllers, etc.

Seven hours of exhibit time with no conflicting sessions or meetings…Exhibit Hall Attendance Prizes and Drawings. This is a

professionally managed show with excellent ROI.

Limited Exhibit Booth & Sponsorship opportunities are available. For more information, visit www.asphaltindiana.org

APAI produces one of the largest asphalt association meetings in the country. For more details and booth pricing, please email :

Bill Knopf at [email protected] or Laura Jackson at [email protected]

Register Today!www.asphaltindiana.org

Dates: January 7-9, 2015Location: Indianapolis Marriott East

Indianapolis, IN

equipment maintenance

APAI is pleased to provide you with an opportunity to exhibit at our

Annual Winter Conference and Trade Show!

Attendees include 400-500 contractor personnel and 75+ local government agency officials, plus over 50 senior staff from DOT

and FHWA. The Winter Conference features specialized educational programming and committee meetings for plant production and

QC managers, laydown crew supervisors, safety and environmental managers, owners, partners and senior management executives,

project managers and estimators, controllers, etc.

Seven hours of exhibit time with no conflicting sessions or meetings…Exhibit Hall Attendance Prizes and Drawings. This is a

professionally managed show with excellent ROI.

Limited Exhibit Booth & Sponsorship opportunities are available. For more information, visit www.asphaltindiana.org

APAI produces one of the largest asphalt association meetings in the country. For more details and booth pricing, please email :

Bill Knopf at [email protected] or Laura Jackson at [email protected]

Register Today!www.asphaltindiana.org

Dates: January 7-9, 2015Location: Indianapolis Marriott East

Indianapolis, IN

Check the Haul Truck Every ShiftBy JOhn BAll

Large vehicles carrying 14 to 25 tons of 300-degree asphalt mix need to be in perfect working order. The

driver of such a vehicle should have com-plete confidence in his brakes, in his di-rectional lights, in his horn, in his back-up alarm, in his tires, in his speedometer, and so on. He should feel confident that if—God forbid—an accident should happen, the fire extinguisher in the cab will oper-ate properly.

One of the ways the haul truck driver has confidence in his equipment is by per-forming a walk-around and routine check of that equipment before climbing in the cab at the beginning of his shift. Another way he has confidence in his equipment is by reviewing the mechanic’s statement or vehicle inspection certificate concerning

the truck. In the road-building work en-vironment, each equipment operator is responsible for his or her own safety and the safe operation of his or her assigned piece of equipment. While company own-ers must answer to health and legal orga-nizations such as the Occupational Safety and Health Administration (OSHA), in-surance companies and lawyers if an acci-dent occurs, it is the equipment operator who will have to live with the life-chang-ing horror of having harmed—or even killed—someone if a haul truck or other vehicle fails catastrophically during his or her shift.

To help workers safeguard one another and the traveling public, there are proto-cols for inspecting and maintaining vehi-cles that will be operating in work zones

and on our roadways. On the back of this page is a checklist and form that you may tear out and photocopy for your vehi-cle operators. Make sure each haul truck driver knows that he is to perform sim-ple, routine checks of his vehicle, and any trailers attached to it, before each shift. Have someone in your office be respon-sible for collecting and reviewing these checklists on a regular basis. If a driver has an item to be repaired, you want to address it immediately. The checklist is only valuable to you and your operators if a mechanic or other qualified person fol-lows up on any questionable items.

John Ball is the proprietor of Top Quality Paving, Manchester, N.H. For more informa-tion, contact him at (603) 493-1458 or [email protected].


DRIVER’S VEHICLE INSPECTION REPORTComplete this form as required by the dOt federal motor carrier safety regulations

CArrier:

Address:

dAte: tiMe: A.M. p.M.

trACtOr/truCK nO. OdOMeter reAdinG

❒ Air Compressor

❒ Air lines

❒ Battery

❒ Belts and hoses

❒ Body

❒ Brake Accessories

❒ Brakes, parking

❒ Brakes, service

❒ Clutch

❒ Coupling devices

❒ defroster/heater

❒ drive line

❒ engine

❒ exhaust

❒ Fifth Wheel

❒ Fluid levels

❒ Frame and Assembly

❒ Front Axle

❒ Fuel tanks

❒ horn/Backup Alarm

❒ lights

head – stop

tail – dash

turn indicators

❒ Mirrors

❒ Muffler

❒ Oil pressure

❒ radiator

❒ rear end

❒ reflectors

❒ safety equipment

Fire extinguisher

Flags – Flares – Fusees

reflective triangles

spare Bulbs and Fuses

spare seal Beam

❒ starter

❒ steering

❒ suspension system

❒ tire Chains

❒ tires

❒ transmission

❒ trip recorder

❒ Wheels and rims

❒ Windows

❒ Windshield Wipers

❒ Other

CheCK Any deFeCtiVe iteM And GiVe detAils under “reMArKs”

❒ Brake Connections

❒ Brakes

❒ Coupling devices

❒ Coupling (King) pin

❒ doors

❒ hitch

❒ landing Gear

❒ lights – All

❒ reflectors/reflective tape

❒ roof

❒ suspension system

❒ tarpaulin

❒ tires

❒ Wheels and rims

❒ Other

trAiler(s) nO.(s)

❒ COnditiOn OF the ABOVe VehiCle is sAtisFACtOry.

driVer’s siGnAture

❒ ABOVe deFeCts COrreCted ❒ ABOVe deFeCts need nOt Be COrreCted FOr sAFe OperAtiOn OF VehiCle

MeChAniC’s siGnAture dAte:

driVer’s siGnAture dAte:

28 november 2014

30 november 2014

in August, AArOC processed slab reclaimed asphalt into minus

1-inch pieces for use as fill.

Western Ontario aggregates producer AAROC Aggregates stays in the black process-

ing 1-inch minus reclaimed asphalt pave-ment (RAP) particles from chunks as big as a coffee table. The processed RAP, which originates from driveways and parking lots and cold milling machines, is destined for use as fill and for top dress-ings for low-volume pavements and park-ing lots. They keep asphalt millings from pavements separately for use in spec as-phalt mixes for local road agencies.

“The biggest challenge we have is un-certainty and variability of the product in our production environment,” Jamie Martelle said. He’s the sales and opera-tions manager for AAROC Aggregates. “Not every site is the same. Not all feed materials are the same. One of the rea-sons we chose this mobile crusher was its versatility in being able to adapt to site conditions. For example, we get positive production in tight quarters.”

To maintain consistency of end prod-uct, AAROC separates incoming asphalt from commercial projects from incom-ing highway pavements. “We will get bet-ter production from asphalt milled prod-uct than slab product,” Martelle said. “That’s why we control the raw material as it comes in; we know the customers and what they provide. As long as we have the room to keep the stockpiles separate, we can maintain composition.”

In addition to the 1-inch minus RAP, de-pending on location, AAROC will produce a 5/8-inch minus RAP for incorporation into spec asphalt mixes. AAROC moves the crusher from pit to pit, or quarry, but has the option to move it to construction sites where demolition concrete or asphalt exists to be recycled. RAP was being pro-cessed at Westcliff Pit, which is one of five locations in Ontario managed by AAROC Aggregates, a unit of the John Aarts Group of Ilderton, Ont., which also includes J-AAR Excavating and AAROC Equipment.

Keeping processed rAp in separate stockpiles maintains consistency from excavation to production

By tOM Kuennen

AAROC Aggregates Separates Sources

AAROC Aggregates Separates Sources


the crusher foreman can operate the mobile impact crusher from the loading excavator cab using a handheld remote.

32 november 2014

ASPHALT PLANT EQUIPMENT, LLC

www.asphaltplantequipmentsales.com • [email protected] • Office: 706 595-3268 • Cell: 706 466-3678

APE-102 Gencor Hy-Way Model HYCGO-100 hot oil heater with expansion tank

APE-105 Bituma-Stor 90’ x 300 tph drag slat conveyor, new chain & slats, total rebuild

APE-106 Five compartment 10’ x 14’ cold feed bins, 24” x 9’ feeders, all electrical

APE-107 Esstee 70,000 cfm cyclone style dust collector, support structure

APE-108 Gencor 30,000 gallon, clean, NEW coils, skid mounted liquid tank, 3 agitators

APE-109 Gencor 30,000 gallon, coiled, very clean, skid mounted liquid asphalt tank

APE-114 CMI 400 tph triple drum design, complete asphalt plant , 3 recycle feeders

APE-115 Barber Greene DM-55 portable, parallel flow drum mixer, Hauck burner

APE-116 Standard Havens 225 tph stationary complete parallel flow drum facility

APE-120 Truss frame conveyor, 24” x 49’ long, gravity take-up, belt scale, supports

APE-121 Channel frame 12” x 24” x 88’ long, gravity take-up, belt scale, supports

APE-122 Astec 9’ x 32’ dryer assembly, Hauck 520 burner with controller, duct work

APE-123 Astec 65,000 cfm baghouse complete, skid mounted, compressor, all electrical

APE-128 Portable 30K gallon coiled tank, 2 agitators, Heatec heater and unloading pump

APE-131 Systems Equipment control house, 2 room, 12’ x 27’, all electrical for 400 tph

TOM HOLLEYUSED PLANT EQUIPMENT SPECIALIST, 35 YEARS EXPERIENCE

“I personally inspect each piece of equipment represented”

AAROC was crushing RAP pieces at a rate of 300 to 325 metric tonnes (330 to 358 short tons) per hour, Crusher Fore-man Tom Ritchie said. “That’s an ade-quate speed,” he said. “Anything more than that will make it hard to keep up with the excavator, or you are having to watch the belt.”

One challenge AAROC met when searching for a new crusher was using the right excavator to feed raw material. AAROC has had its new Kleemann Mobi-rexMR130ZSEVOimpactorwith52-inchcrusher inlet width since January 2014, but first tested the waters with an MR 110 ZSEVOwith44-inchcrusherinletwidth.

“We fed the MR 110 with a smaller ex-cavator,” Ritchie said. “We started off with MR 130 using a like-sized excavator, but we were struggling to keep up with the asphalt.”

Breakout force was lacking, he said. “We were all right with recycling con-crete,” Ritchie said, “but with the asphalt, we needed more ripping power to get through the asphalt. The reclaimed as-phalt will get packed in hard as it melds

together in the sun,” he said. “Trucks back over it and the excavator runs over it, too.”

AAROCnowfeedstheMR130ZSEVOwith a 2.75-cubic-yard bucket that’s 54 inches wide.

Prescreen for ProductivityAn integral, double-deck, independent prescreen below the receiving hopper improves RAP productivity and profit-ability for AAROC. The denotation “Z” in the nomenclature of the machine in-dicates the presence of this prescreen, which uses an elliptical motion. The ben-efit of elliptical motion is more product comes out of the prescreen cleaner, with smaller material bypassing the crushing circuit or going to the side belt as a sale-

able product. This increases total output and reduces long-term wear costs.

“It lessens the load on the crush-er itself,” Ritchie said. “It lets the fines pass through so they are not fed into the crusher, causing needless wear. It lightens the load overall. The fines drop through, join the crushed material where they are sized in the attached final screen, and oversize is returned to the crusher circuit.”

With its continuous feed system (CFS), each step the material goes through in AAROC’s plant is wider than the width of the one before it, eliminating choke or wear points.

The crusher is diesel direct-driven via a fluid coupler, and feedback is provided from the engine to the controlling com-puter, allowing indications that the crush-er may be getting overloaded. CFS man-ages a more equal loading of the crushing area, in which the conveying frequencies of the feeder trough and the prescreen are adapted independently of each other to the level of the crusher.

“as loNg as we haVe the room to keep the SToCkPileS SePArATe,

We CAn mAinTAin compositioN.”—Jamie

mArTelle


34 november 2014

6 Bin Cold Feed

Weigh Conveyor2 Bin RAP 3 Bin RAP

4 Bin Cold Feed

MATERIAL HANDLINGSOLUTIONS

(916) [email protected]

Shingle Bin

COLD FEED BINS, RAP BINS AND SHINGLE BINS

“It lets the system know when it’s get-ting overloaded, and will slow down the feed so it doesn’t stall the crusher out,” Ritchie said. “It’s a very valuable feature that saves us a lot of digging!”

moveTheMR130ZSEVOimpactorfromKlee-mann is the largest crusher AAROC could obtain that would fit on its flatbed trailers.

“Our machine is completely portable,” Ritchie said. “We move it as we need it around our pit locations. Any of them may have a need to crush concrete or as-phalt, or a customer may request us to come and crush.”

Moving the crusher is the easy part, Ritchie said. “The worst part is cleaning it off. We take any stones off the machine and wipe it down, getting it as clean as we can.”

On the new plant, the screen is self-con-tained, attached to the loading conveyor.

“The attached final screen was a ma-jor factor in our selection,” Martelle said. “No matter what we are doing, ev-ery second we run that machine we are saving money.”

“The new impactor works in a much smaller footprint than what we had,” Ritchie said. “It’s a lot easier to set up. With the old plant of crusher and screen it would take three days to tear down and move, with a lot of labor. But with this model we can have it broken down and cleaned in four to five hours, and that’s from the time you stop feeding it to the time you’re ready to load on the low-boy.”

By contrast, the new mobile impact crusher with attached final screen is moved easily, loaded in a couple of hours. “It’s the biggest screen we could get that would fit on our lowboy and still allow us to move it around,” Ritchie said. “That’s due to weight restrictions, height and width. The final screen stays on, but we have to lower the side conveyor and fold

the hydraulic hopper sides down, which is easy to do.”

With the new plant, AAROC saves on fuel consumption. “We’re seeing a 30 to 35 percent reduction in fuel costs with the new impact crusher,” Martelle said. “It has much to do with the diesel-elec-tric direct drive, as opposed to a hydrau-lic drive.”

Ritchie’s hand-held remote control al-lows him to operate the crusher from within the feeding excavator cab, or con-trol its movement as he walks alongside it, guiding the impact crusher onto the flatbed trailer. “We just track it up and on like any other tracked piece of equip-ment,” Ritchie said.

“The remote controls feeder speed, magnet belt and the tracks,” he said. “It also will raise and lower the jam door on top of the apron lid. If you get a big piece in the hopper, or [a piece] standing up-right that won’t go in, you can raise the door and keep the flow going.” With the magnet belt, if a large piece of steel comes out, the belt can be raised for access, Ritchie added.

“Not eVery site is the same. Not all feeD materials are the

same.”—Jamie martelle


“The versatility and quickness of mobiliza-tion of the machine has allowed us to service all our various locations’ market demand,” Martelle said. “If we had our old set-up, we would be well behind on our production targets, due just to lost time of mobiliza-tion. Because we can move the Kleemann in the morning and be running it the same day, across town or 50 km (30 miles) away, we can

crush another day and a half more than we could before.”

“They say ‘If you like what you’re doing, it ain’t work’.” With the opportunity to con-trol a powerful crusher via remote, and to dig piles of aggregate, Ritchie likes what he’s doing. “It’s every little boy’s dream to play in the sandbox all day,” he said. “And now I have the biggest remote control of all.”

tOp rOW: the new Kleemann Mobirex Mr 130 Zs eVO crusher in london, Ontario, processes 1-inch minus rAp from slabs and millings. photos courtesy Wirtgen America. BOttOM leFt: tom ritchie is the crusher foreman for AArOC Aggregates. BOttOM riGht: An attached final screen returns oversized material to the crushing circuit, thus eliminating the stand-alone screen that AArOC’s previous plant had used.

36 november 2014

Frac sand mining is the extraction of the fine-particle sand needed for hydraulic fracturing (“fracking”)

of wells. The process is expanding in the United States and some groups feel that it poses a threat to human health, the en-vironment and local economies, accord-ing to a report from the Civil Society In-stitute’s Boston Action Research. The re-port titled “Communities at Risk: Frac Sand Mining in the Upper Midwest” was released in cooperation with Environ-mental Working Group (EWG) and Mid-west Environmental Advocates (MEA). The report is available online at www.bit.ly/fracsandmining.

According to the report, a significant portion of frac sand mining in the United States today is concentrated in Wisconsin and Minnesota, which have a total of 164 active frac sand facilities. Wisconsin is on track to extract 50 million tons of frac sand a year.

Drilling companies have found that the use of more frac sand per well increases shale gas and oil yields. As a result, ana-lysts [which aren’t named] estimate that fracking companies will require 95 bil-lion pounds of frac sand this year. This amount represents a growth of 30 percent from 2013.

Given this growth in fracking, extrac-tion could spread to several other states with untapped—or largely untapped—frac sand deposits. This includes Illinois, Maine, Massachusetts, Michigan, Mis-souri, New York, North Carolina, South Carolina, Pennsylvania, Tennessee, Ver-montandVirginia.

One of the report’s authors, Grant Smith is a senior energy policy advisor at the Civil Society Institute, and his opin-ion of the growth in fracking is not an op-timistic one. “The rapid expansion in the United States of oil and shale gas drilling, including hydraulic fracturing, has a hid-den side filled with problems: the min-

ing of the special sand that is essential to fracking a drilled well...”

EWG Executive Director Heather White said: “None of the states at the cen-ter of the current frac sand mining boom have adopted air quality standards for sil-ica that will adequately protect the tens of thousands of people living or working near the scores of recently opened or pro-posed mining sites….”

Key concerns about frac sand mining outlined in the report include the following:• Waterissues• Healthissues• Financialissues

Crispin Pierce, PhD, commented on the health aspects of the report, introduc-ing the silica dust conversation. He is the associate professor and program director of Environmental Public Health Program, University of Wisconsin-Eau Claire. “Our research group has tested the air around frac sand plants over the last five years and found elevated levels of fine airborne particulates including silica in neigh-boring communities. We are concerned about potential increases in cardiovas-cular disease, premature death and lung cancer. Our state regulator, the Wiscon-sin Department of Natural Resources, is requiring less than 10 percent of the 140 frac sand operations in the state to moni-tor their emissions, and even then not re-quiring monitoring of the particulates of most concern, including silica.”

Silica, or silicon dioxide, is a chemical compound that is most commonly found in nature as quartz. Crystalline silica is an ultrafine byproduct that occurs when sili-ca is crushed, chipped, etc.

As readers are aware, the asphalt indus-try worked closely with the Occupational Safety and Health Administration (OSHA) and the National Institute for Occupational Safety and Health (NIOSH) for more than a decade to determine how best to keep workers in milling operations safe from sili-ca dust exposure during their shifts. The re-sult was twofold. First, the team developed a permissible exposure level (PEL) of 50 micrograms of respirable crystalline silica per cubic meter of air (50 µg/m3) consistent with NIOSH’s REL for silica. Second, the team developed methods to contain silica dust created during milling through water spray and vacuum systems on milling ma-chines. It is interesting to note at this time that aggregate sources and mix production facilities have had no need to develop such containment systems because workers are not at risk of breathing in “clouds” of silica dust. As Tony Bodway, chairman of the Sil-ica/Milling Machine Partnership explained, the microscopic particles of dust created when aggregate is conveyed at the plant dis-sipate thoroughly. Once particles disperse over a long distance, they no longer consti-tute anything near 50 µg/m3, of which the concerned citizens in the Upper Midwest need to be reassured.

“Intense exposure to crystalline silica can cause silicosis within a year,” accord-ing to Hastings Group’s article. What ex-perts should determine is whether or not breathing within a 5-mile radius of a frac sand plant constitutes intense exposure.

In outlining a wide variety of possible industry, state and local responses to the impacts of frac sand mining, the report notes: “Perhaps the best response to the rapid expansion of shale gas extraction is to take a step back and view the entire shale gas fuel cycle more holistically.” As the editor of a construction publication with information pertaining to the silica dust issue, Lender proposes the best re-sponse would be to take current PELs and RELs into consideration first.

For Your Fracking inFormationFrOM hAstinGs GrOup, edited By AsphAltprO stAFF

what experts shoulD DetermiNe is whether or

Not breathiNg withiN a 5-mile rADiUS oF A FrAC

SAnD PlAnT ConSTiTUTeS iNteNse exposure.

40 november 2014

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Crush for Production QualityBy JArrett WelCh

42 november 2014

Aggregates comprise approximately 95 percent of an asphalt mix on av-erage, so it goes without saying that

the aggregate materials themselves con-tribute significantly to the quality of the overall product. The crushing and screen-ing of these aggregates will ultimately de-termine whether the use of the materials in the downstream processes will conform to the requirements set forth in the specifica-tions. With this in mind, the crushing crew has a significant responsibility in ensuring the products they are producing are uniform and of the highest quality.

I’ve heard a saying from people involved in the aggregate side over the years that “rock is rock, and sand is sand.” Though this statement may be a joke for some, the men-tality—should it be taken to heart—dimin-ishes the overall intent of producing quality materials. One of the biggest concerns for a crushing crew is hitting production targets; however, if the tons per hour is not balanced with quality, the high production numbers are meaningless.

There are a number of factors a crush-ing crew deals with on a daily basis that not only affect the quality but the production as well. Material feed, equipment mainte-nance, production targets, screening effi-ciency, and stockpiling are just a few of these factors and all contribute to how well the plant performs and adds to quality. Produc-tion rates will vary depending upon the type and composition of the material, as aggre-gate deposits containing overburden, clays, excess sands or large stones will influence operations during the crushing and screen-ing processes. A crew needs to be aware when the material changes significantly and make adjustments accordingly. With-out making these adjustments, the jaw or cone crusher may not perform optimal-ly and screen blinding may occur, causing variation in the produced products.

Whether it is a stationary or portable plant, the wear and tear a crushing plant goes through on a daily basis is tremen-dous. As equipment and parts wear, the ef-fects on production can compound if main-

tenance issues aren’t addressed in a timely manner. To avoid unnecessary issues, check the bolts on the jaw dies to make sure they are secure and not worn. When using a cone crusher, the mantle and bowl liners should be inspected for wear as well. Examine the drive belts and stacker conveyors to assure there aren’t any tears or cracks and that they are centered on the head and tail pulley. While examining the belts, check the roll-ers and grease the zerks as you go. Inspect oil levels and add when necessary. Check hydraulic lines and pressures, switches, and indicators for proper operation. When any one of these components fails, production comes to a halt and so does the quality. As-suring good maintenance protocols are fol-lowed ensures good production rates and good quality.

Hitting production targets is the main goal for a crushing crew. When those targets are achieved, it gives everyone a sense of ac-complishment but it also means efficien-cy and profitability. The questions then be-come, how consistent was the run and was quality achieved.

I have seen where the target tons per hour was achieved during the day, but the produc-tion was not consistent throughout the day. Having highs and lows during production significantly affects the homogeneity of the material. One sample may be coarse on the gradation whereas another may be fine, and while averaging the data may yield satisfac-tory results, we know that we don’t have a consistent product.

Consistency is the key when looking at establishing production goals, and keeping quality in mind. Too high of goals could con-tribute to screen blinding and compromise the quality. Goals that aren’t high enough may yield quality material, but production rates suffer and so does profitability.

Screening efficiency depends on many factors: the size and shape of the parti-cles of the material and the load it applies on the screen, the type and material of the screen, the size and shape of the open-ings in the screen, its length, its angle of inclination, and its frequency, amplitude, and vibration angle. So what does screen-ing efficiency really mean? Technically, screening efficiency can be described as the comparison of the undersize material carried over a screen and discharged with the oversize product in contrast to the in-put amount of undersize that was initially fed into the screen.

Simply put, to increase efficiency we want to limit the amount of smaller materi-al intermingled with the larger material. In-efficient screening compromises both pro-duction and quality and will have an impact on the downstream processes when the material is used.

It doesn’t matter how well the material is crushed and screened if it is not stock-piled properly. A telescoping radial stacker is a great tool to build a stockpile conducive to quality; however, they typically are not used to their full potential or they are not used properly at all. On several occasions at the start of a new pile, I have been wit-ness to the stacker placed 20 to 30 feet in the air with material running off the end of the belt and broadcast all over God’s coun-try until the pile reaches a point it needs moved. This practice creates segregation of the stockpile and will ultimately need to be remixed with a loader to meet specification criteria, which alone may not be enough to avoid penalties. Using equipment as it is designed and following best practices throughout the crushing, screening and stockpiling phases will help ensure unifor-mity in the aggregate piles created and in-crease the likelihood for good quality use of the products downstream.

Jarrett Welch is the proprietor of Quality Paving Consultants, Denver, Colo. For more information, contact him at (970) 361-1525.

SimPly PUT, To inCreASe eFFiCienCy We WAnT To limiT

the amouNt of smaller material iNtermiNgleD with

the larger material.


Call Sally Shoemaker to order yours today!

573-823-6297Only $1.00 per copy + shipping.

Special pricing available on quantities over 5,000, call for pricing

Help educate future generations about the value of asphalt roads while

providing a positive community message about your asphalt facility!!!!!

Asphalt Pro magazine is proud to announce the launch of Asphalt Lane: A children’s activity book designed to deliver a positive educational message to your local school children.

Told through the eyes of Chuck the Truck and his sidekick Chuck Jr. the story of Asphalt Lane is a perfect opportunity for you to use as a public relations tool.

• Curriculum ideas for your local school district or your child’s elementary class

• A career day activity at your facility

• Company Events- picnics, open houses, plant tours

• Tradeshow giveaways

• Giveaways to local favorite restaurant, church, synagogue.

Use Asphalt Lane for:

Call Sally Shoemaker to order yours today!

573-823-6297Only $1.00 per copy + shipping.

Special pricing available on quantities over 5,000, call for pricing

Help educate future generations about the value of asphalt roads while

providing a positive community message about your asphalt facility!!!!!

Asphalt Pro magazine is proud to announce the launch of Asphalt Lane: A children’s activity book designed to deliver a positive educational message to your local school children.

Told through the eyes of Chuck the Truck and his sidekick Chuck Jr. the story of Asphalt Lane is a perfect opportunity for you to use as a public relations tool.

• Curriculum ideas for your local school district or your child’s elementary class

• A career day activity at your facility

• Company Events- picnics, open houses, plant tours

• Tradeshow giveaways

• Giveaways to local favorite restaurant, church, synagogue.

Use Asphalt Lane for:

good idea

Don’t Come UnhingedBy JOhn BAll

When the haul truck backs toward the paver, best practices demand that the driver stop the vehicle before it bumps the paver. Then the paver opera-tor slowly drives the tractor forward until the push bars gently touch the

tires of the truck. This seems like a simple operation but there are a lot of things that can go wrong in this small space. One of the things we want to ensure is that we don’t let the haul truck’s gate slide open before the paver has made that gentle contact with

here you can see that the haul truck is too far from the paver to begin opening the tailgate. if

the bed had been full of mix, the crew would have had a mess to clean from in front of the paver.


Dillman builds tough equipment.Equipment that performs reliably for years. Equipment you can count on to produce high quality asphalt mix. Full plants. Single components. Individual parts.

Dillman gets the job done

the truck tires. A good idea is to build a hinge in the tailgate so mix can be controlled more carefully.

Make sure the mix doesn’t start moving until the truck and push bars are in contact. The last thing you want at this point is a space between the truck bed and hop-per where hot asphalt mix can fall and pile up in a mess on the road-way. Also look at the truck tires to make sure there’s no mud flap in the way. Many a loose mud flap has been ripped off a haul truck and found its way into the hopper, through the head of material and into a layer of the mat to create an obnoxious pothole in the future.

A few other items to watch for in that small space include how hard the paver impacts the truck. You want the touch to be gen-tle. The purpose for having the

here you can see the tailgate hinge has allowed the gate to open slightly, letting mix flow through to the hopper.

Dillman builds tough equipment.Equipment that performs reliably for years. Equipment you can count on to produce high quality asphalt mix. Full plants. Single components. Individual parts.

Dillman gets the job done

truck stop so the paver does the inching forward is to let the pav-er operator control the move-ment and speed. This way, the truck doesn’t bump the paver and shake clumped or cooled material loose, causing tempera-ture and material segregation in the mat. Repeated bumping from backing haul trucks can take its toll on equipment parts as well.

The hinge is air-driven with controls in the haul truck’s cab. By opening the gate as you see in the picture at left, the driver gives access for easier cleaning. Keeping the hinge open in this way prevents clogs as the bed cools in between loads.

John Ball is the proprietor of Top Quality Paving, Manchester, N.H. For more information, contact him at (603) 493-1458 or [email protected].

notice the tailgate hinge.

Align Power At The Plantline ’em up. if your facility needs 5 megawatts of power during peak power use, five 1-megawatt generators synched in parallel can provide the power, and then automatically power down one by one as necessary to save on fuel consumption as power demand declines. the generators consume only the fuel that is needed to supply the load. All photos courtesy of Atlas Copco, Commerce City, Colo.

48 november 201448 november 2014

By JiM siFFrinG

To get a smooth, fresh, black-as-night asphalt surface takes experience, the right equipment and smooth, steady power at your plant. A good starting point to ensure you have the

power you need to keep things moving is to choose a generator with enough kilowatt output. You might find there’s a way to get depend-ability, save costs and be efficient in numbers—paralleling.

Connecting multiple generators to operate in parallel so they meet the same kW as a single larger unit ensures power continues if one goes out of service and allows some units to be powered down when the load falls below a certain level. In this manner, the gensets provide predictable power and operate more efficiently.

batches of benefitsParalleling has been common practice for asphalt and aggregate plants for quite some time, but it wasn’t always as easy to do as it is today. There was a time when connecting generators required nu-merous wires and connections, and operators needed to manually adjust controls and monitor loads frequently.

Technology has evolved, and now plug-and-play designs allow operators to connect the units’ controls with one cable. Once this is done, operators can connect the power cables to a common bus, set a few parameters in the controller and hit the start button. From there, the generators automatically synchronize.

Not all generators are plug-and-play; gensets that aren’t equipped to parallel will need to be upgraded with a controller that creates a power management system (PMS) to operate all of the units. Gen-erators with these types of controllers feature motorized breakers that, once connected, allow the units to start and stop automatical-ly as loads fluctuate. This makes synchronization faster than what could be achieved with older models. Not only that, but with some OEM’s models, users can parallel as many as 16 generators. That will provide serious power.

With asphalt and aggregate plants, dependable power is crucial. If you’re operating with one generator and it goes down, you’ll be faced with a tough situation as asphalt cools and hardens. That’s not only difficult and time-consuming to remove from the batcher, but also can cause damage. If you replace the single generator with several smaller units operating in parallel, there will be little to no impact if one is taken out of service. Risk of damage to equipment is greatly re-duced and you have more uptime.

Look at fuel consumption. Let’s say the plant needs 5 megawatts of power to operate numerous pieces of equipment. Five 1-megawatt generators that are paralleled can provide the same amount of peak power as two 2.5-megawatt generators, but they automatically power down as usage decreases or power up as it increases. The generators consume only the fuel that is needed to supply the load.

Paralleled generators reduce costs for asphalt batch plantsBy JiM siFFrinG

Align Power At The Plant


As the load falls below certain levels on some larger gen-erators, so does the fuel efficiency. For example, if the load requirement falls below 750 kilowatts, a 2.5-megawatt unit will be operating at 30 percent load, which is below opti-mal operating range. If you’re using three 1-megawatt gen-erators that are paralleled, two will automatically power down and the remaining one will be in a more efficient op-erating range. This can save a considerable amount of fuel.

Operators can customize the power management sys-tem to a wide range of parameters. For instance, let’s say a jobsite has five paralleled 1-megawatt generators that will run near full power during certain periods of the day, but at other times the load is just ½-megawatt. The power management system can be programmed to operate with the minimum power, plus one additional unit. Adding the 1-megawatt ensures there will be continuous, stable pow-er so productivity won’t be affected in the case of demand surges. As an alternative, all of the generators can run con-tinuously at the same time to constantly share the load.

Several smaller generators also give site managers flexi-bility. They can use them as stand-alone units on the job or at different plant sites. A few smaller generators also can be significantly less costly to purchase or rent than their larger counterparts.

Form and FunctionWhen looking for generators to parallel at your batch plant, you’ll first need to consider many of the same cri-teria you would for a stand-alone unit: altitude, ambient temperature, amperage, voltage, motor starting method and surge capacity. It’s also important to keep in mind that generator power ratings for prime power applications, such as batch plants, are 10 percent lower than they are for standby applications.

Also remember that some generators might need to be set up by a specialist and can require several cables for connecting units and external switchgear. This can add up to more costs and time to factor in.

Consider the location of the control panel. Placing your generators on a trailer could put the control panel out of reach

the power management system can also be programmed to operate with the facility’s minimum power in mind, plus one additional unit. Adding the additional power ensures there will be continuous, stable power so productivity won’t be affected in the case of demand surges. As an alternative, all of the generators can run continuously at the same time to constantly share the load.

50 november 2014

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and require you to make several trips on and off the trailer every time you need to monitor the controls.

With tough jobsite conditions, durability and longevity factor into generator selection. Rather than placing them in standard ISO shipping containers, some OEMs build them into 20-foot enclosures that they design and manu-facture from the ground up. This typically ensures the unit is structurally sound and can accommodate larger open-ings for maintenance access and control panels.

If you’ll be operating in cold weather, look for optional features such as coolant heaters, battery chargers, heavy-duty batteries and synthetic engine crankcase oil, which maintains the appropriate viscosity in colder temperatures.

mind your maintenanceMaintenance means costs. To keep those costs down, some OEMs incorporate features into their ISO-spec en-closures to make maintenance easier. For example, some generators have all fluids plumbed to the edge of the unit. Some enclosures have large access doors. Some give users access to all maintenance points from one side. For ma-jor repairs, many generators can be completely removed from an enclosure to give technicians full access to main-tenance points.

Also consider your schedule. Many OEMs require ser-vice intervals of 250 hours, but in recent years, some have extended that to 500 hours. This is possible because of fea-tures such as long-lasting, oversized fuel and oil filters and larger oil pans that require less service. Performing rou-tine maintenance less often means you can save on main-tenance costs and reduce total cost of ownership. If site managers are using the generator as a stand-alone unit, those fewer maintenance intervals also mean less sched-uled downtime. You also can reduce routine maintenance by choosing generators with maintenance-free batteries.

Smooth operatorIn asphalt paving, moving in jerks and starts simply isn’t an option. Consistent, predictable power will keep your asphalt batch plant up and running smoothly, and paralleling is one of the best ways to get that. With today’s technology, it will also give you better ease of use, greater efficiency, and lower fuel and maintenance costs. That’s smart power.

Jim Siffring is the product manager, generators, for Atlas Copco Construction Equipment, Commerce City, Colo. For more information, contact him at (303) 887-1218 or [email protected].

Features on the Atlas Copco QAC1200, such as doors that swing completely open and access points on one side, make maintenance easier for technicians.


equipment gallery

Hoover Rents to Expand RAP Crushing PowerAtlas Copco Powercrusher PC3 and

HCS 5515 screen expand paving com-pany’s RAP capacity

The paving company of Hoover Inc in Tennessee has increased its reclaimed as-phalt pavement (RAP) production by up to 20 percent by renting an Atlas Copco Pow-ercrusher PC3 and HCS 5515 screen. Here’s the scoop.

Tennessee RAP regulations allow paving companies like Hoover a larger reserve if the asphalt is consistently screened to a speci-fied reduction size based on the plant’s mix ratio. Hoover Paving Manager Tom Hoover Jr. said that although his company has its own stationary crusher, renting the porta-ble Powercrusher PC3 helped the compa-

ny tackle a 14-month schedule surge in RAP production. The increased stockpile gives Hoover Inc. Paving years of reserve RAP for future projects.

In the first four months, the setup had contributed 120,000 tons to Hoover’s RAP reserves. However, the Hoover team found other uses for it whenever RAP produc-tion paused for other projects on the plant grounds, such as reducing waste rock from its pit to aggregate.

Hoover Paving Superintendent Thomas Lovvorn said he was impressed at the size and type of material it could handle. “It will take big rocks,” he said, spreading his hands about 2 feet apart. “Whatever you put in it is going to get ground.”

Eric Amberson, Atlas Copco’s product line manager for Powercrushers in the Unit-ed States, said the PC3 impact crusher does well with abrasive material such as RAP be-cause it was designed as a primary crusher. However, its high throughput rate, rated at 250 tons per hour, begins before the box, at the vibratory hopper. Fines are sifted down to the bottom and through its grizzly onto the main conveyor, decreasing the volume of abrasive material entering the chamber.

“The geometry of the box itself is that of a primary crusher,” Amberson said. The ca-pacity of the PC3 crushing chamber is cre-ated by its swing beams’ relationship to its rotor, which allows for larger feed sizes. The feed inlet is 4 feet by 2 feet, 4 inches.

hoover inc rented the powercrusher pC3 and hCs 5515 screen for 14 months, crushing and

screening rAp and pit material during that time.

54 november 2014

At the Lebanon site Hoover keeps RAP to less than ¾ inches by running the PC3 with a 5/8-inch top screen and 9/16-inch bottom screen. Hoover and Lovvorn believed the cost of operating the PC3 to be low, consid-ering it is powered by a 385-horsepower en-gine. The crusher was consuming about 12 gallons of fuel per hour, using a total of 75 gal-lons for the run time given it during a typical 10-hour shift.

During the 14-month rental, all mainte-nance was performed by Atlas Copco, who remained on call for Hoover.

Hoover Inc was established in 1955 by Ephraim Hoover Jr. during the time of Pres-ident Eisenhower’s interstate highway ini-tiative. Three of Hoover’s hot mix asphalt plants are located in Tennessee and have their own quarries.

Pavexpress eases Pavement DesignDesigning the right pavement for the job got easier thanks to PaveXpress, a free Web-based pavement design scoping tool for roadway and parking lot pavements. PaveX-press can be downloaded for free at www.pavexpressdesign.com. It creates techni-cally sound pavement structural designs for flexible and rigid pavements based on widely accepted industry standards from the Amer-ican Association of State Highway Transpor-tation Officials (AASHTO).

PaveXpress is designed for use by local agencies, engineers, architects, consultants and engineering students who need a reli-able way to quickly determine the necessary pavement thickness for a given section of roadway or project. The software only asks users for inputs required to create technical-ly sound pavement designs, and it suggests industry-accepted defaults where appropri-ate. Context-sensitive help and guidance are available at every step of the scoping process to aid users.

“Not everyone who is called upon to spec-ify a pavement has extensive training as a pavement designer,” Adam Hand said. He’s the vice president for quality management for Granite Construction Inc., and consult-ed in the development of the web tool. “With PaveXpress, some basic design parameters and traffic data, users can develop pavement designs that are technically sound for the chosen task within minutes.”

The simplified pavement design tool is based upon design equations from the

1993 AASHTO Guide for the Design of Pavement Structures and the 1998 Sup-plement to the AASHTO Guide for the Design of Pavement Structures.

For parking lots, two approaches are used. For heavy-duty sections expected to handle truck and bus traffic, AASHTO de-sign equations are employed; for light-du-ty sections, such as parking stalls, the tool provides access to state-specific flexible pavement designs based upon industry-accepted standards and guidance. PaveX-press also includes links to state and local guidance, as well as to Pavement Interac-tive, to ensure the right pavement is being selected for the job.

Projects created in PaveXpress can be printed, shared and saved, and design options can easily be evaluated in a side-by-side comparison. As a browser-based tool, PaveXpress can be accessed from any computer or mobile device, regard-less of screen size or operating system.

PaveXpress was developed by Pavia Systems, a leader in the development of software and technology for the transpor-tation infrastructure sector, with funding from the National Asphalt Pavement As-sociation and the State Asphalt Pavement Associations. Planned future updates to PaveXpress will add modules for the de-sign of overlays, as well as tools for mech-anistic-empirical pavement designs.

For more information, visit http://asphalt-pavement.org.

order Agg equipmentThe Eriez® “Equipment for the Aggre-gates Industry” brochure is now available for immediate download from the com-pany’s website. The full-color, six-page piece is designed to help aggregates cus-tomers quickly find the right products to move materials and protect expensive equipment from damage caused by tramp metal. With detailed product descrip-tions and images, the literature offers a comprehensive overview of the material handling, magnetic separation and metal detection equipment Eriez offers to meet the demands of the aggregates industry. A full-page flowchart illustrates the loca-tions and types of Eriez equipment used in a typical aggregates processing plant. The “Equipment for the Aggregates In-dustry” brochure also features a brief case study that describes how one well-known

rock processor successfully incorporat-ed an Eriez Series 7000 Suspended Elec-tromagnet to eliminate tramp metal con-tamination that was damaging their ex-pensive crushers. The brochure offers in-formation on Eriez’ quick-ship program for magnetic separators. To download the brochure in PDF format, visit http://eriez.com/Markets/Index/Aggregate.

Detect important levelsBindicator® of Spartanburg, S.C., is proud to announce that Hazardous Lo-cation certificates from UL have been is-sued to their recently launched, rede-signed point level sensors: Roto-Bin-Di-cator®andVRF®II.TheULcertificationis recognized in both the United States and Canada for explosion-proof Class I, Div 1, Groups C and D, and dust-ignition-proof Class II, Div 1, Groups E, F and G.

The Roto-Bin-Dicator paddle wheel switchandtheVRFIIcapacitanceswitchwere recently upgraded by Bindicator to modify the housings and bin connections as well as to increase electronic function-ality providing higher sensitivity, univer-sal power supply and simpler calibration methods. Hazardous Location certifica-tion will allow these new point level prod-ucts to be used in dry bulk environments requiring explosion-proof and dust-igni-tion-proof equipment, such as applica-tions in fly ash hoppers and chemical bins.

For more information about these prod-ucts or to download a copy of the certification, visit www.bindicator.com


equipment gallery

Grasan Customizes Portable Primary PlantThe KRH1515 is Grasan’s largest road-porta-ble primary impact crushing plant. It can be configured for asphalt/concrete recycling with side discharge or for crushing lime-stone (end discharge), providing reduction ratios as great as 30 to 1 in closed circuit, ac-cording to the manufacturer. The plant fea-tures the Hazemag APPH impact crusher with fully automatic, hydraulic cylinder sys-tem to provide increased crusher capacity of up to 600 tons per hour.

Crusher adjustments have been simpli-fied so no tools are needed, according to the manufacturer. The crusher inlet is 45 inches high—10 inches greater than previous mod-els—to handle larger sizes of incoming ma-terial. A hydraulic moveable inlet base helps clear jamming and bridging. The hydrau-lic inlet hood is secured with wedge pins for easy opening and closing. To reduce us-ers’ spare parts inventories, side liners in the crusher have been reduced from seven to three standardized shapes and all multi-blocks have been made interchangeable. A grizzly bypass chute makes it easy to keep or reject undersize material.

The Grasan KRH1515 is available with diesel or electric power and includes a skid-on, skid-off hopper and six indepen-dent hydraulic support legs for easy set-up and tear-down without a crane.

For more information, contact Grasan at (419) 526-4440 or visit www.grasan.com.

henkel unveils first instant hybrid adhesive technologyHenkel Corporation, Rocky Hill, Conn., introduces Loctite® 4090™, a patented hybrid adhesive that combines the bond strength of a structural epoxy with the speed of an instant adhesive. This combi-nation delivers the first structural cyano-acrylate, which is an adhesive that offers rapid, high strength bonding to a range of substrates along with impact and mois-ture resistance, and temperature resis-tance to 300°F. The new technology ex-pands the capabilities of cyanoacrylates, especially in applications where tradi-tional instant adhesives offer too little strength or are too brittle.

The high viscosity gel adhesive fixtures in 3 to 5 minutes when used to fill gaps up to 0.2 inches. Because it resists moisture, impact,vibrationandUVlight,theadhe-

sive is an excellent choice for outdoor and marine applications. This hybrid material offers high bond strength on a variety of substrates, including metals, most plas-tics and rubbers, and can be used to bond dissimilar materials.

Loctite® 4090™ Hybrid Adhesive re-sists chemicals and solvents, especially motor oils, gasoline, ethanol, isopropanol and water. The product is available as a 50 ml cartridge packaged with 5 mix nozzles, and should be dispensed with the stan-dard Loctite® 50 ml Dual Cartridge Man-ual Applicator, sold separately.

For more information, visit www.henkelna.com/4090 or call 1-800-LOCTITE (562-8483).

Grasan’s Krh1515 with impact crusher

the new adhesive from henkel is the first structural cyanoacrylate, according to the company.

56 november 2014

ACe Torwel Preps for Winter SpreadingThe snow and ice management division of ACE Torwel, Inc., Bellingham, Mass., has released its Economizer dual-motor 12Velectric pick-up truck spreaders and an-nounced improvements to is Economizer gas-over-hydraulic pick-up truck spread-ers. If you supplement your commercial business with winter pavement clearing, here’s the information.

12V electric pick-up spreaders: Withspreader wireless control, you can oper-ate two motors independently with variable speed conveyor and spinner disk for precise rate and pattern control, according to the manufacturer. They’re designed to let you take care of sensitive accounts at night with-out noisy vibrator noise disturbing your cus-tomers. A new, optional swing-up spinner chute makes unloading material faster, along with making the cleaning process more ef-ficient and complete. Tipping the spinner chute up also allows for easy trailer hitch access. Performance advancements target more efficient, reliable snow and ice con-trol in 1.3, 1.5, 1.7, 2.5 and 3.0 cubic yard mod-els. ACE Torwel’s improved Economizer du-al-motorelectricV-boxspreadersare light-weight and feature stainless steel or painted 14-gauge steel construction. Operators can control the flow of material with an in-the-cab wireless control panel that features stop, start, variable conveyor speed and variable spinner disk speed. The Economizer dual-motor electric pick-up spreader has a qui-et drive to provide smooth fluid power, and built-in circuit overload protection, and self-adjusting conveyor tensioner to aid in per-formance and chain life. Each unit includes items for installation including heavy-duty woven top screen top, tie-down straps and wood runners. Options include 304 stain-

less steel, 12-inch chute extension, swing-up spinner chute, replacement spinner disks, headboard(cabshield),andinverted“V”de-sign (conveyor bridge).

Economizer gas-over-hydraulic V-boxspreaders: With new optional swing-up spinner chutes, unloading material is fast-er and the cleaning process more efficient and complete, according to the manufac-turer. Made in the USA, ACE Torwel’s im-proved Economizer gas-over-hydraulic V-boxspreadersare lightweightand fea-

the 12V electric pick-up spreaders from ACe torwel now target more efficient, reliable snow and ice control in 1.3, 1.5, 1.7, 2.5 and 3.0 cubic yard models.

the economizer gas-over-hydraulic V-box spreaders from ACe torwel allow operators to control the flow of material from an in-the-cab control panel that features electric start.


equipment gallery

ture stainless steel or painted 14-gauge steel construction. They feature a qui-et, durable 5.5-horsepower Honda gas engine with electric start. Operators can control the flow of material with an in-the-cab control panel that fea-tures electric start, choke, throttle, and conveyor controls and adjustable material deflectors. An optional 12-inch chute extension is also available.

For more information on either prod-uct, visit www.acetorwel.com or call (800) 225-9415.

Protect your Work TruckKeep your truck looking better longer by protecting its two most damage-prone areas from daily wear and tear. XPEL of San Antonio, Texas, offers paint protection film kits for rocker panels and bed rails.

To protect rocker panels from road and tire debris, XPEL’s Rocker Panel Guards kit safeguards this large, vul-nerable area of the vehicle. Rocker Panel Guards kit contains 9 inches by 30 feet of protection film, which can also be used to shield doors, bed sides and fender flairs.

Truck bed rails can be shielded from loading and unloading scrapes and chips using XPEL’s Bed Rail Guards kit, a cost-effective alternative to in-stalling metal or other bed liner prod-ucts. Each kit contains 4 inches by 17 feet of tough, removable film—enough to cover two bed rails.

The manufacturer states the Rock-er Panel and Bed Rail Guards kits are easy to install and are available in two styles:• ClearGuardfeatures8milpolyure-

thane film with a clearcoat finish that is virtually invisible when ap-plied and provides maximum shine and durability.

• Black Guard, made of embossed13 mil PVC, hides existing dam-age and helps protect against new scratches and abrasions.XPEL high-quality protection films

are designed to withstand years of wear and tear, but can easily be re-moved if needed.

For more information, call (800) 447-9928 or email [email protected]. For a list of installers in your area, visit http://locator.xpel.com/.

brookfield offers Specials, TooTo continue its 80th anniversary, Brookfield Engineering of Middle-boro, Mass., is offering a promotional offeron itsDV3TRheometer.Anau-tomatic 10 percent discount on the purchase price runs through Novem-ber 2014.

For more information, visit www.brookfieldengineering.com.

One kit to protect bed rail guards…

One kit to protect rocker panels, doors, fender flairs…

58 november 2014

equipment gallery

new industrial valve Seal increases high-pressure PerformancePlattco Corporation, Plattsburgh, N.Y., has won a patent for a high pressure mechanical shaft seal that improves the performance and maintenance-free operation of industrial valves in high-velocity, high-pressure conveying systems.

The Plattco High Pressure Mechan-ical Shaft Seal features a unique design that enables industrial valves to oper-ate flawlessly over long time periods in conveying systems that maintain air pressure of up to 42 pounds per square inch (PSI). The Plattco High Pressure Mechanical Shaft Seal is made using corrosion-resistant 304 stainless steel and can operate without the use of an external air source and without ad-justment over long time periods.

“In designing the Plattco High Pressure Mechanical Shaft Seal, we’ve solved a number of problems experienced by industrial compa-nies that need to convey highly abra-sive materials in demanding environ-ments,” Dean Surprenant said. He’s the Plattco engineering manager who played a key role in the product de-sign. “Our new patented design elim-inates the excessive wear on valve shafts and housings typically caused by highly abrasive materials under high pressure.”

Plattco was awarded US Patent No. 8128095 for an innovative design that incorporates the shaft bearing into the industrial valve housing as a self-con-tained cartridge. Plattco also incor-porated unique design features that eliminate the need for scheduled lu-brication and maintenance, and make the shaft seal easy to replace.

In recent years, the Plattco High Pressure Mechanical Shaft Seal has been installed in Plattco Double Flap Airlock ® valves supporting compa-nies in asphalt, cement and several other industries that handle abrasive materials in their operations. Numer-ous companies have installed Platt-co double flap valves with the High Pressure Mechanical Shaft Seal to eliminate emission-related problems

caused when lantern ring air purge seals fail.

“The Plattco Mechanical Shaft Seal is an outstanding improvement for the Plattco product line,” said Rich Halliday, Jr., asphalt plant superinten-dent at Wilkes-Barre Materials, LLC, operator of an asphalt plant in North-eastern Pennsylvania. “We first in-stalled the new shaft seals on the valve that pneumatically conveys the ma-terial off our baghouse in 2010. Since then, we haven’t had to touch them to perform maintenance. That’s real-ly impressive when you consider that we’re using the valves to remove fine (200 mesh) material that’s about 300 degrees.”

For more information on the Plattco High Pressure Mechanical Shaft Seal, visit http://plattco.com/h-seal.html.

volvo offers WarrantiesVolvoConstructionEquipmentguar-antees its machines will withstand de-manding worksite conditions or the company will make it right by repair-ing or replacing the frame or other structural components, should a de-fect occur in material or workman-ship. The lifetime frame and structure limited warranty is available in North America. Products covered under the frame and structure warranty include:• Articulatedhaulers• Wheelloaders• Backhoeloaders• Skidsteerloaders/compacttrack

loaders• Motorgraders• Soilandasphaltcompactors• Selectexcavators*

The warranty covers the machine frame and other key components such as boom, arm or articulation joint, based on the machine. The life-time frame and structure warranty ap-plies to the initial machine owner and is non-transferrable. A minimal acti-vation fee is required to register for the program for all eligible models, excluding skid steer loaders and com-pact track loaders.

*To view full details of the lifetime frame and structure limited warranty, visit volvoce.com/frame.


equipment gallery

Cat excavatesThe five compact radius Cat® E2 Se-ries mini hydraulic excavators will not only get a new cab design, they will also get new high definition hydraulic sys-tem and a new place of manufacture in the 850,000-square-foot Caterpillar facil-ity in Athens, Ga. The machines affected are the 303.5E2, the 304E2, the 305E2, the 305.5E2 and the 308E2. The E2 models are designed to have a wider opening for op-erators, a high quality suspension seat, easy-to-adjust arm rests and an overall im-proved ergonomic layout for comfort and productivity.

All the E2 series models are equipped with the digital control panel specially de-signed for Cat mini excavators—the COM-PASS. The machines’ specs are below.

For more information, visit www.caterpil-lar.com/en/contact.html

Quatro Provides Award-Winning Security ProductThe SmartTower from Quatro Electron-ics® with cellular wireless communica-tion & monitoring system from B&B Elec-tronics has received the new product of the year award for perimeter security from Security Products Magazine. The product was developed as a cost-effective alternative to employing security officers to oversee equipment in remote, vulner-able or temporary environments such as construction sites. The manufactur-er states the Quatro SmartTower can ac-commodate locations with limited pow-er and no landline communications, thus protecting a site before core utilities are available.

The SmartTowers are designed to en-hance existing perimeter protection with a multi-layered solution using a 96-decible siren to warn intruders, infra-red and white light for areas prone to vandal-ism, 30-times zoom to see isolated areas, Voice-Over-IPforreal-timecommunica-tion, and wireless connectivity for instal-lation anywhere.

The SmartTower combines an alloy sub-frame and an extruded alloy pneu-matic mast that is extendable up to 25 feet. The top of the tower houses a high-end, wireless PTZ camera with on-board storage capacity of up to 64GB. As it can be powered by AC power, wind, solar or hydrogen fuel cell, the SmartTower can operate for up to three months continu-ously without recharging.

B&B Electronics worked with Quatro Electronics to develop the cellular wire-less communication and monitoring sys-tem so users could install the SmartTow-er anywhere, wirelessly connect it to a re-mote control center, and transmit high-bandwidth streaming video and CCTVimages over high speed cellular infra-

structures in the USA, UK and across Eu-rope. The Quatro SmartTower communi-cation system is 4G ready, and also works on 2G/3G networks. At present, the unit will operate remotely on GPRS/EDGE/HSPA/HPSA+ (CDMA optional) cellular networks and will seamlessly migrate to high-bandwidth 4G/LTE networks when they are available. The B&B wireless cel-lular router is designed for outdoor use and is the backbone of the communica-tion platform. Dual modules can connect to two cellular carriers simultaneously, enabling reliable failover if one connec-tion fails, ensuring the tower’s transmis-sions are always on. The GPS system pro-vides both asset tracking and real-time data/time stamping of images generated by the remote cameras and sent to the control center. The router also enables the SmartTower to perform certain ac-tions, such as directing a camera to a spe-cific location on site, power-manage-ment, and providing alarm messages to the remote control center.

For more information, visit www.quatro-electronics.com.

hirschmann improves load cellsHirschmann MCS has improved its fSENS DKA compression load cells for measur-ing static or dynamic forces of up to 700 kN. Developed in close collaboration with customers, the load cells are suitable for a wide range of applications such as captur-ing counterweight loads in lifting gear or measuring pressures in aerial work plat-forms. The series features two different housing sizes for four different measure-ment ranges.

The design of these small, compact sen-sors is of corrosion-resistant stainless steel containing more than 15 percent chromi-um. All of the new models feature a mount-ing plate that it flexible attached to the measurement spring. This enables auto-matic alignment of the sensor body and precise measurement of oblique loads.

To meet specific requirements, the load cells can be configured for different forces, output signals, or redundancy. As a standard feature, all models can be con-nected to external amplifiers via a shield-ed cable.

For more information, contact Sarah Nell at (717) 217-2255 or [email protected].

spec 303.5e2 304e 305e2Cr 305.5e2Cr 308e2

engine model Cat C1.8 Cat C2.4 Cat C2.4 Cat C2.4 Cat C3.3B

kW (hp) 17.5 (23.5) 30.0 (40.2) 30.0 (40.2) 32.9 (44.1) 48.5 (48.5)

digging force, bucket 7,419 lbf 8,498 lbf 10,049 lbf 11,443 lbf 13,534 lbf

digging force, stick 3,799 lbf 4,384 lbf 4,788 lbf 5,575 lbf 7,891 lbf

dig depth 113 in 123 in 129 in 137 in 185 in

max reach 205 in 211 in 220 in 228 in 275 in

Cat’s 304e2 mini excavator

Cat’s 308e2 Cr mini excavator

60 november 2014


here's how it works

The worker sets the sample container inside the box and closes the door for safety.

Step 1

The worker turns the lever counterclockwise, thus opening the valve to allow a portion of AC to flow into the receptacle.

Step 2

After 10 or 15 seconds, the worker returns the lever to its closed position.

Step 3

When the interlock has disengaged, the worker will be able to open the access door and remove the sample.

Step 4

The valve will not open for asphalt to flow into the sample container unless the access door’s interlock is engaged.

Maxam’s Safe-Sampler™

If you need to take liquid asphalt ce-ment (AC) samples from your 4-inch or 6-inch line that feeds liquid AC

to your mixer, the engineers at Maxam Equipment, Kansas City, Mo., have de-veloped a sampling device to assist you. This in-line capture features an enclosed sampling system to dispense the asphalt into quart or gallon containers without exposing workers to hot liquid. Here’s how it works.

The mechanic installs the Maxam Safe-Sampler™ in the existing asphalt line at the plant. Asphalt flows through the heat-ed spool. When a worker needs to take an asphalt sample, he or she places the re-ceptacle inside the box beneath the valve.

The worker closes and latches the door on the front of the box. He then rotates the lever counterclockwise to no more than a 6 o’clock position to begin the sampling process. The sampling will not begin unless the access door’s interlock is engaged.

The hot-oil-heated piping, valve and spout allow liquid AC to flow without plugging to the sampling container with-in the box. The worker views the flow through the high-temperature glass on the front door. The flow of AC contin-ues through the line during the sampling, with just a minimal sample amount de-flected to the sampling valve.

When the container is filled—approx-imately 10 to 20 seconds for a quart con-

tainer depending on the size of the line—the worker rotates the lever back up to close the valve, stopping the flow of AC through the spout. The flow continues normally through the line.

For more information, contact Maxam at 816-241-7380 or visit www.maxamequip-ment.com.

how us how it worksIf you’re an equipment manufacturer with a complex product, let us help you explain its inner workings to the readers of AsphaltPro magazine. There’s no charge for this editori-al department, but our staff reserves the right to decide what equipment fits the parame-ters of a HHIW features. Contact our editor at [email protected].

62 november 2014

www.clarencerichard.com

Training: Why Bother?

ContraCtor’s 25 operators said:• 92% was at the least as to what they expected.• Over half felt the content was excellent or perfect.• 80% agreed the contents met their expectations.• 96% agree that at least somewhat that expectations

were met.• Two thirds agree their job performance will improve.• 96% agree their job performance will somewhat improve.• Over two thirds felt Web-Based Training is more effective than

Classroom Training.• 100% will refer it to others.

test results:• The Operators improved 44%.• Two thirds had over 10 years experience and they improved 40%.• ROI:2/3 gave it a payback within 6 months.• Nearly 1/4 of them felt the payback was going to

every week.• Two thirds of those giving this one week payback

were 10 year veterans.

[email protected]

Consider e-Electro-Mechanical WorkshopPrivate Workshops available on request

www.clarencerichard.com

Training: Why Bother?

ContraCtor’s 25 operators said:• 92% was at the least as to what they expected.• Over half felt the content was excellent or perfect.• 80% agreed the contents met their expectations.• 96% agree that at least somewhat that expectations

were met.• Two thirds agree their job performance will improve.• 96% agree their job performance will somewhat improve.• Over two thirds felt Web-Based Training is more effective than

Classroom Training.• 100% will refer it to others.

test results:• The Operators improved 44%.• Two thirds had over 10 years experience and they improved 40%.• ROI:2/3 gave it a payback within 6 months.• Nearly 1/4 of them felt the payback was going to

every week.• Two thirds of those giving this one week payback

were 10 year veterans.

[email protected]

Consider e-Electro-Mechanical WorkshopPrivate Workshops available on request

HAVING TROUBLE WEIGHING!!!REPLACE YOUR WEIGH POD

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New!!! Now have access to review this Web Based Training for as long as you wish.

PO Box 519, Shelbyville KY 40066 • Fax 502.647.1786

Inc.

CALL US NOW FOR DETAILS 866.647.1782 VIEW ALL OUR INVENTORY ONLINE AT:

www.ReliableAsphalt.com

Featured Listings1994 400 TPH Astec Double Barrel Plant - RAP 13879

Gencor Rotary Mixer Plant - RAP 13971

• (2)200tonCedarapidsSiloSystemw/SlatandScales• GencorNominal6x18RotaryMixer-ModifiedBucketElevator• 10x50Dryerw/GencorUltraflameIIBurner• StandardHavensBaghouse,KOBox,Ductwork• 5BinColdFeedSystem-KPI-JCIVirginScreenNominal4x10

• VirginScaleBelt• SkidMountedRapBin-LumpBreakerandRapScaleConveyor• HorizontalFuelOilTanks• ControlHousew/PlantControls• Note:(1)VerticalACtanknotincluded

SeevideooftheseplantsatourYouTubeChannel:www.youtube.com/user/asphaltplantpros

• 8ftAstecDoubleBarrel• Nominal70,000CFMBaghousew/HorizontalCyclone• 5BinColdFeedSystem• VirginScreen&ScaleConveyor

• RapBin• RapScreen&ScaleConveyor• ControlHousewithPlantControls• (SiloSystemandACStorageNotIncluded)

Asphalt Drum mixers ........52, 58 Contact: Steve Shawd

or Jeff Dunne

Tel: 260-637-5729

[email protected]

www.admasphaltplants.com

Asphalt Plant equipment ........58Contact: Tom Holley

Tel: 706-595-3268 or

706-466-3678

[email protected]

www.asphaltplantequipmentsales.com

astec, inc. ................ …..19, 24, 51 Contact: Tom Baugh

Tel: 423-867-4210

[email protected]

www.astecinc.com

b & S light industries ..............38Contact: Mike Young

Tel:918-342-1181

[email protected]

www.bslight.com

boCA Construction.................. 61Tel: 419-668-5575

www.bocaconstructioninc.com

Cei .............................................. 4Tel: [email protected] www.ceienterprises.com

Clarence richard Co .................63Contact: Clarence RichardTel: [email protected]

Dillman equipment...................46Tel: 608-326-4820www.dillmanequipment.com

eagle Crusher ...........................29Tel: [email protected]

e.D. etnyre ................................59Contact: [email protected]: 800-995-2116www.etnyre.com

ergon inc. ................................... 11Savemyroad.com

Fast-measure ........................... 61Tel: 888-876-6050

www.Fast-measure.com

Gencor industries ..................... 13Contact: Dennis Hunt

[email protected]

www.gencor.com

heatec, inc. ..... inside Front CoverContact: Sharlene Burney

Tel: 800-235-5200

[email protected]

www.heatec.com

libra Systems .......................... .57Contact: Ken Cardy

Tel: 225-256-1700

[email protected]

www.librasystems.com

Quality Paving Consultants…60Contact: Jarrett Welch

Tel: 970-361-1525

[email protected]

www.qualitypavingconsultants.com

reliable Asphalt Products .............. back Cover, 64Contact: Charles Grote

Tel: 502-647-1782

[email protected]

www.reliableasphalt.com

roadtec ...................................7, 9Contact: SalesTel: [email protected]

rock Systems ...........................35Contact: Mike Bruce,[email protected] or Vicki [email protected]: 916-921-9000www.rocksystems.com

rotochopper, inc ....................inside back CoverTel: [email protected]

Stansteel AsphaltPlant Products ............ 41Contact: Dave PayneTel: [email protected]

Stansteel ..................................23Contact: Dawn KochertTel: [email protected]

www.hotmixparts.com

Systems equipment .................20Contact: Dave Enyart, Sr.Tel: 563-568-6387Dlenyart@systemsequipment.comwww.systemsequipment.com

Tarmac international, inc .........50Contact: Ron HeapTel [email protected]

Top Quality Paving ................... 61Contact: John BallTel [email protected]

Willow Designs .........................65Contact: Jerod WillowTel: [email protected]

WrT equipment .......................65Contact: Dean TaylorTel: 800-667-2025or [email protected]

AsphaltPro’s Resource Directory is designed for you to have quick access to the manufacturers that can get you the information you need to run your business efficiently. Please support the advertisers that support this magazine and tell them you saw them in AsphaltPro magazine.

resource directory


Inc.

CALL US NOW FOR DETAILS 866.647.1782 VIEW ALL OUR INVENTORY ONLINE AT:

www.ReliableAsphalt.com

Featured Listings1994 400 TPH Astec Double Barrel Plant - RAP 13879

Gencor Rotary Mixer Plant - RAP 13971

• (2)200tonCedarapidsSiloSystemw/SlatandScales• GencorNominal6x18RotaryMixer-ModifiedBucketElevator• 10x50Dryerw/GencorUltraflameIIBurner• StandardHavensBaghouse,KOBox,Ductwork• 5BinColdFeedSystem-KPI-JCIVirginScreenNominal4x10

• VirginScaleBelt• SkidMountedRapBin-LumpBreakerandRapScaleConveyor• HorizontalFuelOilTanks• ControlHousew/PlantControls• Note:(1)VerticalACtanknotincluded

SeevideooftheseplantsatourYouTubeChannel:www.youtube.com/user/asphaltplantpros

• 8ftAstecDoubleBarrel• Nominal70,000CFMBaghousew/HorizontalCyclone• 5BinColdFeedSystem• VirginScreen&ScaleConveyor

• RapBin• RapScreen&ScaleConveyor• ControlHousewithPlantControls• (SiloSystemandACStorageNotIncluded)


date futures spot data stocks

Aug 11 $98.26 367.0 m bbl

Aug 18 $98.09 362.5 m bbl

Aug 25 $96.44 360.4 m bbl

sept 1 $95.39 359.5 m bbl

sept 8 $92.64 358.5 m bbl

sept 15 $92.86 362.2 m bbl

sept 22 $91.46 357.9 m bbl

sept 29 $94.53 356.3 m bbl

Oct 6 $90.33 361.6 m bbl

Oct 13 $89.74 361.7 m bbl

Up-Time vs Up-KeepEach Rotochopper shingle grinder is designed with one simple goal—maximizing the value of your shingle waste by minimizing wear costs and maintenance downtime.

Which Rotochopper grinder is right for your volume of shingle waste? Contact us today to learn more. 320-548-3586 www.rotochopper.com

• No weekly hardfacing

• Most uptime

• Best horsepower effi ciency

• Fast tooth & screen changes

• Less spillage

• No augers, sprockets, or chains operating in abrasive fi nes

• 350-765 HP, electric or diesel

Up-Time

RG-1 Purpose-Built Shingle Grinder

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last cut

Lower Diesel Fuel Price Trend ContinuesDiesel fuel's persistently higher

price for the last several years, relative to other fuel options, has

created increased cost in the production and paving markets. In February, 2014, the Department of Energy Short-Term En-ergy Outlook predicted a decline in die-sel fuel prices through 2015. The forecast anticipated average cost for diesel fuel to decline over the next two years, from an average of $3.92 a gallon in 2013 to $3.83 a gallon in 2014 and $3.73 in 2015. And the most recent data available from the Ener-gy Information Administration seems to support this trend in lower prices.

As of October 6th, U.S. diesel fuel pric-es decreased two cents to $3.73 per gallon, down sixteen cents from the same time last year, according to the Energy Infor-mation Administration. The largest price declines occurred in the East Coast, Mid-west, and Gulf Coast regions, each de-creasing by more than two cents, to $3.76 per gallon, $3.67 per gallon, and $3.66 per gallon, respectively. The Rocky Mountain and West Coast prices declined by almost two cents, to $3.79 per gallon and $3.93 per gallon, respectively.

While the average price of a gallon of unleaded is expected to remain lower than diesel, the incremental price drops for unleaded are not projected to be as dramatic. The continued decline in both unleaded and diesel prices could mean lower operating costs and better margins for producers and contractors across the United States.

Source: eia.gov

Figure 1. Liquid Asphalt Cement Prices • Prices listed are the average per ton for the month

Company, state Aug '14 sept '14 Oct '14

Associated Asphalt Charlotte, nC 620 640 640

Associated Asphalt Greensboro, nC 620 640 640

Associated Asphalt salisbury, nC 620 640 640

Associated Asphalt inman, sC 625 645 640

Associated Asphalt roanoke, VA 620 640 640

Associated Asphalt Bristol, VA 620 640 630

Associated Asphalt hopewell, VA 610 630 600

Axeon specialty products Wilmington, nC 600 625 615

Axeon specialty products Charlotte, nC 600 625 615

Axeon specialty products savannah, GA 600 615 605

Axeon specialty products newport news, VA 605 630 615

Axeon specialty products richmond, VA 605 630 615

ergon Asphalt & emulsions, inc. Wilson, nC n/a n/a 605

phillips 66 Knoxville, tn 620 620 620

phillips 66 Chattanooga, tn 610 610 610

Valero Wilson, nC 605 625 n/a

California Average 532.5 500.8 477.5

delaware Average 608.33 623.3 618.33

Kentucky Average 596.25 597.5 595

Massachusetts Average 640 630 n/a

Missouri Average 592.5 607.5 n/a

Data for Southeast region, Source: ncdot.org • Data for California, Source: dot.ca.gov • Data for Delaware, Source: deldot.gov • Data for Kentucky, Source: transportation.ky.govData for Massachusetts, Source: mass.gov • Data for Missouri, Source: modot.mo.gov

sources: energy information Administration

Crude Oil Activity (u.s. Crude)

Aug 4 3.853

Aug 11 3.843

Aug 18 3.835

Aug 25 3.821

sept 1 3.814

sept 8 3.814

sept 15 3.801

sept 22 3.778

sept 29 3.755

Oct 6 3.733

By AsphAltprO stAFF

as of october 6, u.s. Diesel FUel PriCeS DeCreASeD two ceNts to $3.73 per GAllon, DoWn SixTeen ceNts from the same time lAST yeAr, ACCorDinG To the eNergy iNformatioN aDmiNistratioN.

diesel Fuel retail price (dollars per gallon)

sources: energy information Administration

66 november 2014

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• 15,000 gallon • Side-mounted Agitator • Insulated

RAP-14105 GENCOR VERTICAL AC TANK

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RAP-14016 RECONDITIONED GENTEC TURBO RAP GATOR

RAP-14377 PORTABLE ASTEC DOUBLE BARREL

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Asphalt Pro - November 2014

Documents

competitor tank

heat losses

greater heat loss

tav30 tank

similar tank

inches of insulation

screen aggregates

asphaltpro staff42 crush