Investigation of Synergistic Effects of Warm Mix Asphalt and High Fractionated Reclaimed Asphalt Pavement for Safe, Environmentally Sustainable Highway

Increasingly, warm mix asphalt (WMA) pavements are being constructed with reclaimed asphalt pavement (RAP) contents. Currently, 10-20% of RAP materials are commonly used for WMA. In the future, it is anticipated that more highway pavements will be constructed using WMA with high fractionated reclaimed asphalt pavement contents (WMA-HiFrap). However, there is no comprehensive research done to identify the synergistic effects between WMA and high fractionated RAP; therefore, it is critical to determine the relationships between the fundamental characteristics of WMA-HiFrap materials as a function of the increasing FRAP content up to 100%. In the project, WMA with varying HiFrap contents will be evaluated with respect to their fractionation methods, WMA-HiFrap mix design procedures, dynamic moduli and flow number and rutting characteristics. As a result of this research, the synergistic effects between WMA and RAP will be identified to help pavement engineers build a safe and environmentally sustainable U.S. surface transportation system with an improved state of good repair.


  • English


  • Status: Completed
  • Funding: $46211.00
  • Contract Numbers:


  • Sponsor Organizations:

    Research and Innovative Technology Administration

    University Transportation Centers Program
    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Performing Organizations:

    University of Iowa, Iowa City

    102 Church Street
    Iowa City, IA  United States  52242
  • Principal Investigators:

    Lee, Hosin

  • Start Date: 20120701
  • Expected Completion Date: 0
  • Actual Completion Date: 20131231
  • Source Data: RiP Project 32788

Subject/Index Terms

Filing Info

  • Accession Number: 01483138
  • Record Type: Research project
  • Source Agency: Mid-America Transportation Center
  • Contract Numbers: DTRT12-G-UTC07
  • Files: UTC, RIP
  • Created Date: Jun 5 2013 1:01AM