Development of a RTFO-Aging Test Protocol for WMA Binders and Its PG Grading

Warm mix asphalt (WMA) is one of the Every Day Counts (EDC) technologies announced by the Federal Highway Administration (FHWA) and it is becoming increasingly popular. Rolling thin film oven (RTFO) aging that represents aging during production, is performed at 163°C at which hot mix asphalt is prepared. Warm mix asphalt is prepared at lower temperatures and therefore, there is a need for developing a revised RTFO aging test procedure for WMA binders for accurate performance grading and for determining if grade bumping is necessary. The objective of this study is to investigate the aging during foam-based warm mix asphalt production in the field and during laboratory short-term oven aging and develop a revised RTFO protocol to simulate these aging. A method will be developed that will determine if asphalt binder grade bumping is necessary. The method will require the use of the revised RTFO procedure.


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    • Status: Active
    • Funding: $80170
    • Contract Numbers:

      SPTC 15.1-28/DTRT13-G-UTC36

    • Sponsor Organizations:

      Office of the Assistant Secretary for Research and Technology

      University Transportation Centers Program
      Department of Transportation
      Washington, DC  United States  20590
    • Managing Organizations:

      Southern Plains Transportation Center

      University of Oklahoma
      201 Stephenson Pkwy, Suite 4200
      Norman, OK  United States  73019
    • Performing Organizations:

      Louisiana Tech University, Ruston

      Ruston, LA  United States  71272
    • Principal Investigators:

      Wasiuddin, Nazimuddin

    • Start Date: 20160401
    • Expected Completion Date: 20180630
    • Actual Completion Date: 0
    • USDOT Program: University Transportation Centers Program

    Subject/Index Terms

    Filing Info

    • Accession Number: 01607670
    • Record Type: Research project
    • Source Agency: University of Oklahoma, Norman
    • Contract Numbers: SPTC 15.1-28/DTRT13-G-UTC36
    • Files: UTC, RiP
    • Created Date: Aug 17 2016 1:59PM