Intro to our Dexter Valley Team Andy Desmarais- Operations Manager Colin MacKinlay - Chief Estimator Kevin Bezanson – General Superintendent Matthew McLaren.

Intro to our Dexter Valley Team

• Andy Desmarais- Operations Manager • Colin MacKinlay - Chief Estimator• Kevin Bezanson – General Superintendent• Matthew McLaren – Projects Superintendent• Andrew Mackintosh – Concrete/Special Projects• George Spencer - Superintendent / QC• Nick Greenough – Job Supervisor• Christopher White – Projects Coordinator

Valley Division

DEXTER VALLEY DIVISIONServices

- Grading - Experience/Expertise- Paving/Asphalt - Excavation- Processing of Aggregates (Blasting/Crushing/Screening) - Concrete Work (Sidewalk/Curbs’ etc)- Quality Control - Trucking- Budgets - Pipe Work- Estimating - Material Supply- Traffic Control- Internal Engineering Team

Intro to our RoadRedi Team

• Trevor Chisholm- General Manager• Patrick Grey- Estimator• Steve Flemming- Superintendant• Pat Benoit- Superintendant• Carter Reilly- Superintendant• Jeff Huntley- Project Manager

Intro to our GLC Team

• Simon Pianarosa - General Manager

• Chris Campbell- Operations Manager

• Shawn Gould – Customer Liaison

• Trevor Wheaton - Accounts Manager

• Bill O’Leary - Senior Advisor, Market and Product Development

The Right Treatment, to the Right Pavement, at the Right Time!

PAVEMENT PRESERVATION

Why Preserve?

Pavement Preservation

• Allows you to change your approach:

– Look for and correct small problems before they become big ones

– Eliminate the "worst first" Practice

Pavement Preservation

• Pavement Preservation is efficient, effective and economical.

• Save money• Improve safety• Reduce delays• Help pavement last longer• Improve the performance of the entire road network

Doing It Right!

The Right Pavement

• Relying on public complaints is to probably to late.

• Up to date pavement condition surveys are key

Doing It Right!

The Right Time

• Preventative Maintenance needs to be completed in the early stages of the pavement’s Life.

• Move preventative maintenance up on the priority list.

Doing It Right!

The Right Treatment

• Picking the proper treatment for the right level of distress. Here are some things to consider:

Doing It Right!

• The type of pavement• The type, extent and severity of the pavement distress• The age of the pavement (or the time since the last

major rehabilitation)• The type of the road - its use, volume, and traffic speed• The availability of qualified contractors, construction

technology; materials and qualified agency staff• The time of year for maintenance• How long maintenance will take and the impact it will

have on drivers• The pavement quality needed after the pavement has

been treated.

Products for Pavement Preservation

Dust Suppression

Ideal Application

• Dirt roads

• Dust sensitive areas

Life Cycle (Years)1 to 2

Fog Seal

Ideal Application

• Dust Suppression

• Surface OxidationLife Cycle (Years)

1 to 2

Single/Double Chip Seal

Ideal Application

• Low to Med Traffic Volume roads

Life Cycle (Years)3 to 5

Chip Seal Variations

Single Chip Seals

Existing Pavement Binder

Chip Seal Variations

Double Chip Seals

Existing Pavement Binder

Second BinderApplication

Micro Surfacing

Ideal Application

Town/City streetsHighwaysParking lot caps

Life Cycle (Years)7 to 8

HMA Thin Lifts (Polymer or standard)

Ideal Application

• High volume roads• Intersections• Distressed

pavement application

Life Cycle (Years)8 to 10

Products for Re-Construction

Double Chip Seal

Ideal Application

• Low to Med volume streets

• Secondary or connector routes

Life Cycle (Years)5 to 7

Cape Seal

Ideal Application

Low to Med volume roadsEstate or subdivisions streets

Life Cycle (Years)7 to 8

Emulsion Mix (Central Plant)

Ideal Application

• Logistically challenging areas

• Areas where conventional equipment not available

• Roads needing full or partial reclamation

Life Cycle (Years)8 to 10

Emulsion Mix – Central Plant Mixing

Simple Operation, Quick Set up, Long Shelf Life (weeks) vs hours for Hot Mix

Emulsion Mix –Mixing Blade Laid

Dump , Spread and Compact

Emulsion Mix –Paver Lay-down

• No Fumes• Time To Work

with Product• Simple

Operation

Emulsion Mix

• Pavement provides excellent strength and logistics flexibility where traditional hot mix asphalt is too expensive.

• Utilize locally available aggregate or RAP• Reduce haul rates

Hot Mix Asphalt(Standard or Polymer Modified)

Ideal Application

High volume roads,Parking LotsStreets

Life Cycle (Years)12 to 14

Types of Treatments/Typical Costs

Treatments Costs $/M2

Fog seals 1.25

Chip seals 4.00

Micro surfacing 7.40

Emulsion Mix 10.00

Thin hot mix overlays 14.75

*Prices accurate at time of presentation, prices vary depending on conditions of work.

Typical Problems

Standard Solutions

Cracking

• Cause:– Asphalt Shrinkage, Cold

Temperatures, Shifting Underlaying

• Solution:– Crack Sealant– And / Or followed by Chip

Seal, Slurry or other surface

– Partial or full depth reclamation

Rutting

• Causes:– Traffic and Heat– Weak Subgrade– Mix Type

• Solutions– Microsurfacing

for minor rutting– Milling– Polymer Asphalt

for busy intersections

Ravelling

• Causes:– Aging Pavement– Low Compaction /

Placed late in season– Sub-base Issue– Segregated Un-Even

Mixtures• Solutions:

– Fog Seal– Chip Seals– Microsurfacing– Slurry Seals– Emulsion Mix

Complete Failure

• Causes:-Lack of

Maintenance

-Poor sub grade

-Under designed

• Solutions:-Mill Back to Gravel

-Full-Depth Recycling

Example of a Staged Re-construction

1 km long

6.6m

Wid

e

6.6m X 1000= 6600m2

Scenario: Asphalt street complete failure.

Example of a Staged Re-construction

Scenario: Asphalt street complete failure.

Year Work Maintenance

1 Pulverize back to granular, re-grade and Compact

Dust Suppressant,Re-grade as needed

2 Chip Seal Standard town maintenance

3 Fog Seal Standard town maintenance

4 None Fog Re-Applied if necessary

5 Micro Seal/Hot Mix Standard town maintenance

Example of a Staged Re-construction

Scenario: Asphalt street complete failure.Year Price Per M2 Price Per Year (6600m2) Totals

1 Pulverize $1.25 $8,250.00Grading $1.20 $7,920.00

Dust Suppressant

$1.00 $6,600.00 $22,770.00

2 Chip Seal $4.00 $26,400.00 $49,170.00

3 Fog Seal $1.25 $8,250.00 $57,420.004 Nothing N/A N/A $57,420.005 Micro Seal $7.40 $48,840.00 $106,260.00

or5 Hot Mix $14.75 $97,350.00 $154,770.00

Real World Examples

Projects

• MacDonald Bridge – 2011 – Microsurfacing

Projects

• ChipSeal – Aylesford Rd

Projects

• Hwy 103 Microsurfacing

Projects

• Night Work – Slurry Seal – Portland Bridge – Minimizes Disruptions to Traffic Flow

Thank You!