Research for AASHTO Standing Committee on Highways. Task 412. Adjustments to the Superpave Volumetric Mixture Design Procedure for Selecting Optimum Asphalt Content

The objectives of this research were to (1) summarize and evaluate successful approaches currently being used by SHAs to adjust the Superpave volumetric mixture design to obtain higher asphalt binder contents; (2) verify the increase in optimum asphalt content through a limited laboratory experiment that compares successful approaches with the current AASHTO standards; and (3) document these results as proposed appendixes or amendments to AASHTO R 35, AASHTO M 323, or both.


  • English


  • Status: Completed
  • Funding: $100000
  • Contract Numbers:

    Project 20-07, Task 412

  • Sponsor Organizations:

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001

    Federal Highway Administration

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

    American Association of State Highway and Transportation Officials (AASHTO)

    444 North Capitol Street, NW
    Washington, DC  United States  20001
  • Project Managers:

    Harrigan, Edward

  • Performing Organizations:

    National Center for Asphalt Technology

    277 Technology Pkwy
    Auburn, AL  United States  36830
  • Principal Investigators:

    Tran, Nam

  • Start Date: 20180201
  • Expected Completion Date: 20190531
  • Actual Completion Date: 20190531

Subject/Index Terms

Filing Info

  • Accession Number: 01653369
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 20-07, Task 412
  • Files: TRB, RIP
  • Created Date: Dec 11 2017 8:09PM