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ETF Report Summary

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ETF Report Summary

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  1. AASHTO TSP·2 Emulsion Task Force Report Summary December 4 , 2019 Larry Galehouse, P.E., P.S. National Center for Pavement Preservation

  2. Purpose Advance changes in emulsion technology and encourage state DOTs and local agencies to incorporate them into their pavement preservation programs.

  3. Members States Illinois DOT Maine DOT Minnesota DOT Montana DOT Rhode Island DOT Academia Chico State University Texas A&M University of Texas Producers Associated Asphalt Ergon Flint Hills Resource Husky Energy Marathon Petroleum MTE Services AASHTO AASHTO Resource Testing Lab PRI Asphalt TSP·2 NCPP

  4. Members Associations Asphalt Institute Asphalt Emulsion Manufacturers Association Asphalt Reclaiming and Recycling Association FP2 (Foundation for Pavement Preservation) International Slurry Surfacing Association Consultant GHK, LLC FHWA Federal Lands Resource Center Total ETF Members = 29 Total ETF Friends = 47

  5. Emulsion Task Force Organization Co-chaired by Colin Franco, RIDOT and Chris Lubbers, Kraton Polymers Subcommittees: Residue Recovery and Testing Spray & Mix Design Group Supplier Certification & Quality Assurance Recycling Emulsions Messaging & Implementation Rejuvenators Research

  6. Emulsion Task Force Goals Develop AASHTO Standards for all Emulsion Treatments Advance the Development of Performance Based Specifications for Emulsion Binders (EAPG). Develop Quality Assurance Standards for all Emulsion Treatments Develop Research Problem Statements for Asphalt Emulsions

  7. AASHTO Standards • Material Specifications • Test Methods • Design Practices • Construction Guide Specifications

  8. AASHTO Standard Abbreviations

  9. Construction Specifications • AASHTO Commissioned a Joint Task Force comprising • Committee on Maintenance • Committee on Construction • Committee on Materials and Pavements • to review Construction Guide Specifications for all Emulsion Treatments.

  10. Completed Work Products The Special Working Group developed a draft EAPG specification. The draft specification is the basis for the proposal NCHRP 9-63, “A Calibrated and Validated National Performance-Related Specification for Emulsified Asphalt Binder”. This project will formally validate the EAPG specification.

  11. Completed Work Products • The ETF revised and submitted three standards to the AASHTO Committee on Materials and Pavements– Technical Subcommittee 2a (Emulsified Asphalts). The following updated standards were balloted and approved: • M 140-16 Standard Specification for Emulsified Asphalt • M 208-16 Standard Specification for Cationic Emulsified Asphalt • M 316-16 Standard Specification for Polymer-Modified Emulsified Asphalt

  12. Completed Work Products

  13. Completed Work Products

  14. Completed Work Products

  15. Work Remaining • Develop Construction Guides and Quality Assurance procedures for: • Cold In-place Recycling • Fog Seals • Sand Seals • Scrub Seals • Ultra Thin Bonded Wearing Course

  16. Work Remaining Develop specifications for agricultural based asphalt rejuvenators and petroleum based asphalt rejuvenators. Encourage state DOTs and local agencies to use the new a) Pavement Preservation Standard Specifications, b) Construction Guides and Quality Assurance procedures, and c) test methods from AASHTO.

  17. Work Remaining Work with state DOTs and local agencies to host demonstration projects where treatments are constructed using the new AASHTO specifications.

  18. Accomplishments – Emulsion Treatment Standards Status: AASHTO Emulsion STDs ( MAY 2019)

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