Asphalt Emulsion Manufacturing Association (AEMA) Online ... · Asphalt Emulsion Manufacturing Association (AEMA) Online Certificate Andrew Braham Associate Professor. University

Asphalt Emulsion Manufacturing Association (AEMA) Online Certificate

Andrew BrahamAssociate Professor

University of Arkansas

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(duvalasphaltproducts.com)

AASHTO Committee on MaintenancePavement Technical Working Group

Charlotte, NCJuly 24, 2018

Background

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• Motivation: insufficient coverage of asphalt emulsions in undergraduate engineering curriculum

• AEMA hired University of Arkansas (UA) to produce three online asphalt emulsions certificate programs1. Introduction to Asphalt Emulsion2. Application of Asphalt Emulsion3. Manufacture of Asphalt Emulsion

• Content level assumes a bachelor’s degree in any subject area

These courses are designed as on-demand and on-line: take any time, any place

April 2017 January 2018 August 2018

Structure of each certificate

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• Ten lessons per certificate• Each lesson has

– One Educational Brief (10-15 .pdf, can download, print)– Five videos that review key points of EduBrief– Quiz at end of lesson (unlimited tries)

• Two exams in each certificate – Mid-term and final (can take each up to three times)

• Two essays in each certificate, ensures each participant is actively engaged

15 Professional Development Hours (PDH) awarded on completion

Why asynchronous online certificate?

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• Asynchronous: unscheduled, on-demand• Highly specialized areas often not taught at

undergraduate level– For example, asphalt emulsions

• In past 5-10 years, movement toward online platform for workforce development– Younger professionals prefer to be able to learn from

anywhere at any time• Content should be interactive

– Read, watch, quiz, write

Very similar development process as South Carolina’s contract administration training program

Development process in six steps

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1. Develop foundational information and content2. Establish development team3. Select development platform4. Determine delivery methods and stylistic

elements5. Build modules6. Conduct pilot testing

Advisory committee was established to provide feedback and approval in all six steps

1. Develop foundational information and content

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Lesson Introduction toAsphalt Emulsion

Application ofAsphalt Emulsions

Manufacturing ofAsphalt Emulsion

1 Introduction Asphalt emulsion review Asphalt emulsion review2 Chemistry Preservation overview Manufacturing overview

3 Production Fog seal, tack coat, and prime coat

Storage, piping, insulation of raw materials

4 Laboratory testing – Part 1 Chip seals Pumps, meters, and valves in asphalt production

5 Laboratory testing – Part 2 Slurry seal and microsurfacing Chemicals and additives

6 Grading Scrub seal and cape seal Soap production

7 Uses – Part 1Cold In-place Recycling

(CIR) / Full Depth Reclamation (FDR)

Asphalt emulsion mill 101

8 Uses – Part 2 Cold Mix Asphalt (CMA) Milling asphalt emulsion

9 Uses – Part 3Hot In-place Recycling

(HIR) and Ultra-Thin Lift Overlay

Storage and delivery

10 Manufacture Patching and crack seal Quality control testing

Learning objectives also key

1. (cont) Some example learning objectives

7Step 1 included a technical advisory group

Learning Objective

Introduction toAsphalt Emulsion:

Grading

Application ofAsphalt Emulsions:

Scrub seal and cape seal

Manufacturing ofAsphalt Emulsion:

Soap solution production

1Recall the three standard specifications for asphalt

emulsion

Determine proper usage of scrub seal and cape

seals

List the components of soap solutions

2 Review the structure of a grading specification

Identify material section of scrub seal and cape

seals

Describe special considerations for each

component of soap

3 Grade an anionic asphalt emulsion

Examine design strategies of scrub seal and cape

seals

Identify the steps in the proper sequence to

prepare a soap solution

4 Verify the grade of a cationic emulsion

Understand construction of scrub seal and cape

seals

Compare soap production in the lab, in a

batch plant, and in a continuous plant

5Grade a polymer modified asphalt

emulsion- -

2. Establish development team

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Funding andtechnical review panel

Technical content

Instructional design

3. Select development platform: Blackboard

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Next lesson opens upon passing quiz, exam, or submitting essay

4. Determine delivery methods and stylistic elements

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EduBriefs: Print and read –100+ pages of text

Videos reinforce EduBrief highlights

Content formatting consistent: red and yellow colors with UA and AEMA logos

5. Build modules

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• Utilized several existing sources of information– Basic Asphalt Recycling Manual, Shell Bitumen

Handbook, Asphalt Emulsion Technology, and Bitumen Emulsions all heavily referenced

• Technical writer editor reviewed EduBrief draft• External technical review committee approved

EduBriefs and videos– Industry and government representatives

• Global Campus built lessons into Blackboard

Multiple external and internal iterations

6. Pilot testing

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• Group of volunteers performed soft rollout• Questionnaire after each lesson

– Completion time, quantity and quality of material, functionality of Blackboard, etc.

• Ensured that– Technical content correct– Length of each lesson appropriate– Blackboard working as designed

The six steps provided a solid platform for certificate development

Please spread the word!

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If time and interest, live demo…

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Thank you! Questions?

Norwegian B787-900 in Barcelona

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