Research for AASHTO Standing Committee on Highways. Task 375. Improvements to the Dry Back Procedure of AASHTO T 209

The objectives of this study were to (1) determine the appropriate trigger measure such as asphalt or water absorption and to identify the appropriate trigger value, which necessitates use of Dry Back procedure, and (2) determine if there are improvements that can be made to the Dry Back procedure to make it less subjective and produce more repeatable and reliable test results. The results of the research shall be used to modify the existing AASHTO T 209 test procedure. The project final report was submitted to AASHTO COMP for review and further possible action.


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  • Status: Completed
  • Funding: $75000
  • Contract Numbers:

    Project 20-07, Task 375

  • Sponsor Organizations:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    American Association of State Highway & Transportation Officials (AASHTO)

    444 North Capitol Street, NW, Suite 225
    Washington, DC  United States  20001

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Project Managers:

    Harrigan, Edward

  • Performing Organizations:

    Pavement Systems, LLC

  • Principal Investigators:

    Azari, Haleh

  • Start Date: 20150506
  • Expected Completion Date: 0
  • Actual Completion Date: 20170630
  • Source Data: RiP Project 39635

Subject/Index Terms

Filing Info

  • Accession Number: 01562769
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 20-07, Task 375
  • Files: TRB, RiP
  • Created Date: May 8 2015 1:00AM