1. Emulsion Task Force (ETF)
AASHTO TSP2
ETF Meeting
BOSTON Ma– Nov 29-30, 2017
By: Colin A. Franco, P.E.
Assc. Chief Eng.
RIDOT

2. PPETG Pavement Preservation Expert Task Group (PPETG)
Established in 1991 – (Jim Sorenson of FHWA)
Promote the institutionalization of the concepts of pavement preservation
Parent group of “Emulsion Task Force”

3. PPETG
Mission of PPETG
To advance and improve the state of the practice in the area of pavement preservation.
Working collaboratively with:
Federal
State
Local Agencies
Industry
Academia

4. PPETG
Goals of PPETG
Acceptance and Implementation of pavement preservation by state and local agencies
Support preservation programs at the federal, state, and local levels
Identify and address stakeholder needs
Support preservation centers for excellence/regional organizations
Integrate pavement preservation into pavement management / asset management

5. ETF ETF is an AASHTO affiliated Group supported by the TSp2 program
The ETF is an all volunteer stake holder working group

6. ETF

7. Encourage Adoption of Uniform National Standards
ETF
Original Mandate
Advance the Effort to Develop Performance Based Methods & Specification for Emulsions (SPG)
Protocols for design – Materials Specs, Design Practices
Protocols for performance – Best Practices
Protocols for inspection & acceptance - QA
Encourage Adoption of Uniform National Standards
AASHTO – TSP2, Regional Partnerships
FHWA - EGT

8. Added Tasks (2013 – Present)
ETF
Added Tasks (2013 – Present)
Develop Performance Specifications and Design Standards for Adoption by AASHTO for All Emulsion Treatments and Uses in Pavement
Work with the PPETG and other stake holders to Facilitate Adoption of Emulsion Treatments in Pavement Preservation Programs

9. Current Membership (2013 – Present)
ETF
Current Membership (2013 – Present)
Co-Chair- Colin Franco RI DoT – [TSP2, PPETG, SOMtrls, RRAC, SHRP2, LTPP] Co-Chair- Chris Lubbers - Kraton Polymers Members From: - Industry: AEMA/ ARRA/ ISSA/FP2 - Academia: CSU/ Tx A&M/ U.WISC/ NC State - State DOT’s: TX, IA, RI, MN - FHWA - National Center Pavement Preservation (NCPP)

10. Current Subcommittees (2013 – Present)
ETF
Current Subcommittees (2013 – Present)
Residue Recovery and Testing
Arlis Kadrmas (Chair) BASF - AEMA
Design Group
Spray – Gary Hicks (Co-chair) - CSU
Mix – Jim Moulthrop (Co-chair) - Fugro FP2
Supplier Certification and Quality Assurance
Larry Galehouse
Todd Shields (Co-Chair) - IADOT
Recycling Emulsions
Todd Thomas (Chair) - COLAS ARRA ( VACANT )
Research
Darren Hazlett (Chair) – TxDOT (VACANT)
SWG (Special Working Group) – Cood the emulsion binder specifications among all the subcommittee/among treatments – Mike Voth (FHWA Lands)

11. ETF Accomplishments – Pre 2013 AASHTO Standards 2010
Four Standards submitted to AASHTO for Adoption
Standard Practice for Certifying Suppliers of Emulsified Asphalt – Provision (PP 71)
Recovering Residue from Emulsified Asphalt using Low Temperature Evaporative Techniques – Provision (PP 72)
Determining Asphalt Binder Bond Strength by Means of the Bitumen Bond Strength Test (BBS) – Provision (TP 91)
Performance-Graded Asphalt Binder for Surface Treatments (Surface Performance Graded (SPG) Spec) – tabled

12. ETF Accomplishments – Pre 2013 AASHTO Standards 2011
Six Provisional Standards submitted to AASHTO (currently being reviewed by ETF)
Test for Determining the Strain Sensitivity of Asphalt Emulsion Residue Using Strain Sweeps Performed on a Dynamic Shear Rheometer (DSR)
Test for Embedment Depth of Chip Seal Aggregates in the Lab and the Field
Test for Laboratory Chip Loss from Emulsified Asphalt Chip Seal
Test for Measuring Moisture Loss from Chip Seals
Test for Recovery of Asphalt from Emulsion by Stirred-Can Method
Test for Field Emulsion Viscosity
Note: -These have been tabled.
-We have to decide on what to do next.

13. Best Practices Document (draft)
ETF
Accomplishments – Pre 2013
Best Practices Document (draft)
This was the original deliverable for Chip Seal and Micro-surfacing.
Low Temperature Residue Recovery Method
Plan for Inter-lab Study and data collection (ongoing) TP 72
Precision and bias study with AMRL for TP 72

14. ETF Reenergized Mission - 2013
Advance the Effort to Develop Performance Based Methods & Specification for Emulsions
Encourage Adoption of Uniform National Standards
Develop AASHTO STDs for all the Emulsion Treatments (listed on next slide)
Materials Specs
Test Methods
Design Practices
Construction Guide Specs

15. ETF Reenergized Mission - 2013 (PP) Project Development
Requirements for Project Development
Project Selection – for the STIP
Pavement Management System
Experience of Pavement/Maintenance Engineers
Project Design/Contract Documents
Materials standards and specs for Emulsion Treatments
Materials Specifications (M-Stds)
Materials Design Practices (R-Stds)

16. ETF Reenergized Mission - 2013 (PP) Project Development (cont.)
Construction guide Standards
Construction Guide Specifications
Quality Assurance Specifications
Acceptance Decision
Quality Control
Independent Assurance
Certification

17. ETF Reenergized Mission - 2013
Emulsion Treatments Requiring AASHTO STDs
Chip Seal
Micro surfacing
Tack Coat
Fog Seal
Scrub
Sand Seal
Slurry Seal
Foam Asphalt Stabilization
Bonded Surface Treatment (NOVA Chip)
Cold Mixes
Virgin
Recycled
CIR

18. ETF Next Steps Short Term Plan
Complete drafting of AASHTO STDs for remaining Emulsion treatments
QA Protocols for Emulsion treatments starting with microsurfacing and chip seals
Research
Studies
Update PP Research Roadmap

19. ETF Next Steps (cont.) Long Term Plans
QA Protocols for Emulsion Treatments
Develop a SPG Specification for Emulsion Using Superpave Principles. (Original Mandate)
Large Scale Studies / Research
NCHRP
Pooled Fund
Promoting Emulsion Technologies - Up for discussion- new subcommittee ????

20. QA Protocols - Emulsion
ETF
QA Protocols - Emulsion
Work to develop QA Program for All Emulsion Treatments
Materials QA:
Acceptance Testing (Agency)
QC - Quality Control (Contractor)
IA - Independent Assurance (Agency)
New Process / Product Acceptance Procedures
Materials Certification:
Agency Acceptance Plans
QC Plans (Contractor)
Vendor Supplied Material Certifications
Workmanship QA:
Equipment Calibration
Construction Process Checks

21. ETF QA Protocols – (Cont.) Education and Training:
Define the training needs for Agency / Contactor Staff
Education and Training Resources
NHI
TCCC - letter from TCCC
Industry Sponsored Training
Certification Program for Contractor / Agency Field Staff
Note: National Center for Pavement Preservation is taking the lead on education and training.

22. ETF
Development of a SPG Specification for Emulsion using Superpave Principles
SWG Chair, Mike Voth of Federal Lands is leading this effort
Research and Field studies being used for SPG development:
TxDOT – Chip seals, Darren Hazlett with Dr. Amy Epps
NCHRP project 9-50 – Dr. R. Kim at NC State
Federal Lands chip seal research by Gayle King
Note:
SPG - Surface Performance Graded
(2)This work will supplement the TxDOT SPG spec currently at the AASHTO SOM.

23. ETF ETF – Where Are We Going
Complete the AASHTO STDs for all Emulsion treatments
Develop QA protocols for each Emulsion Treatment
Education and Training of Agency and Contractor personnel
Certification of Agency and Contractor personnel
Develop a SPG Emulsion Specification using Superpave Principles

24. ETF ETF – Where Are We Going Promoting the use of Emulsions
Now that the AASHTO Standards exist for some Emulsion Treatments we need to:
Devlop a marketing plan / marketing tools
Promote the technology to
Agencies
Industry
Academia – create course curricula
By whom and how will this be done – For discussion
Regional PP groups?
AASHTO SOMat, SOMaint, SOHwyDesign, Asset Management?

25. Construction Guide Specs Emulsion Binder Standards
AASHTO STANDARDS
Emulsion Treatments
M / MP
T / TP R
W/ SOM
Comments
Construction Guide Specs
Best Practices
Chip Seal
MP27-16
PP82-16 
NCHRP 14-37
Microsurfacing
MP28-16
PP83-16 
Tack Coat
 xx
2016
To SOM ballot 
Fog Seal
MP33-17
 PP88-17
Scrub Seal
xx 
2017
To SOM ballot 
Sand Seal
Slurry Seal
MP32-17
PP87-17 
Foam Asphalt Stabilization
Cold Mixes
Reclamation: CIR
MP31-17 
PP86-17 
NCHRP 9-62
Legend
Emulsion Binder Standards
M=Material Specs
Emulsified Asphalt
M140-16
T=Test Methods
Cationic Emulsified Asphalt
M208-16
R=Design Practices
Polymer-Modified Cationic Emulsified Asphalt
M316-16
P=Provisional
xx=Year, Latest Edition

26. Big Wheels keep on rollin’…?