Crack Resistance and Durability of Ohio DOT Asphalt Mixtures Using I-FIT and IDEAL-CT, Phase 2

In 2016, a research project titled, "Crack Resistance and Durability of RAS Asphalt Mixtures" began to address the need for a better method of quantifying reclaimed asphalt shingles (RAS) durability performance prediction thru lab testing. The two methods that were presented as having the best potential were the Texas Overlay Test (TO) and the Illinois SCB I-FIT flexibility index (FI) test. After Phase 1, Ohio Department of Transportation (ODOT) decided that the FI best fits ODOT's needs moving forward. However, IDEAL-CT subsequently emerged with similar comparison and is more user friendly. ODOT believes that IDEAL-CT will be a better fit for implementation in both mix design approval and quality control/quality assurance (QC/QA) acceptance. This research will prove the suitability of each test and produce recommendations for specification limits and test standards.


  • English


  • Status: Active
  • Funding: $286804
  • Contract Numbers:




  • Sponsor Organizations:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Managing Organizations:

    Ohio Department of Transportation

    Research Program
    1980 West Broad Street
    Columbus, OH  United States  43223
  • Project Managers:

    Nye, Kelly

  • Performing Organizations:

    University of Akron

    College of Engineering
    Akron, OH  United States  44325
  • Principal Investigators:

    Abbas, Ala

  • Start Date: 20191001
  • Expected Completion Date: 20220102
  • Actual Completion Date: 20220102

Subject/Index Terms

Filing Info

  • Accession Number: 01717393
  • Record Type: Research project
  • Source Agency: Ohio Department of Transportation
  • Contract Numbers: 33814, 109887, 135999
  • Files: RIP, STATEDOT
  • Created Date: Sep 19 2019 10:40AM