Data Analysis and Review of Multiple Stress Creep and Recovery vs. Performance-graded High temperature Test Results, Including Binder Elastic Behavior/Response

Rutting is one of the most critical distresses which asphalt concrete mixtures must be properly designed to resist. A crucial element of this design is binder selection. The multiple stress creep and recovery (MSCR) test can better capture the effect of polymer modification on asphalt binder and has been directly related to mixture rutting performance due to its capture of the binder’s nonlinear performance. Two parameters are then measured, percent recovery and non-recoverable compliance. The proposed research will explore potential implementation of either of these or both in an Illinois-specific specification. The proposed project seeks to answer the following research questions: How do high Performance Grade (PG), polymer content, elastic recovery, and other parameters of interest correlate with MSCR parameters? Should MSCR be implemented in Illinois? Is the current data sufficient to implement MSCR into the Illinois Department of Transportation (IDOT) standard binder specification? If so, what thresholds should be used in Illinois for different loading levels? If not, what further research is needed to implement MSCR? What tests can MSCR potentially replace in the specification, if implemented?


    • English


    • Status: Active
    • Funding: $36000
    • Contract Numbers:


    • Sponsor Organizations:

      Illinois Department of Transportation

      Bureau of Materials and Physical Research
      126 East Ash Street
      Springfield, IL  United States  62704-4766
    • Managing Organizations:

      University of Illinois, Urbana-Champaign

      Illinois Center for Transportation
      1611 Titan Drive
      Rantoul, IL  United States  61866
    • Principal Investigators:

      Hajj, Ramez

    • Start Date: 20230401
    • Expected Completion Date: 20231231
    • Actual Completion Date: 0

    Subject/Index Terms

    Filing Info

    • Accession Number: 01878150
    • Record Type: Research project
    • Source Agency: Illinois Department of Transportation
    • Contract Numbers: R27-SP63
    • Files: RIP, STATEDOT
    • Created Date: Mar 31 2023 11:17AM