NCHRP Implementation Support Program. Pilot Test of Proposed Standard Practice for Recycling Agents in Asphalt Mixtures Incorporating RAP and RAS

The objectives of this implementation project are to (1) apply the proposed AASHTO Standard Practice and evaluation tools produced in NCHRP Project HR 09-58 to the recycled binder blends and mixtures associated with field evaluation projects in two climates and independently assess their effectiveness and determine if revisions are needed, (2) provide guidance on the production and construction of mixtures with high recycled binder ratios (RBRs) and high recycling agent dose, and (3) develop a guide for DOTs to evaluate the potential implementation of the proposed AASHTO Standard Practice on field projects built in their states.


  • English


  • Status: Completed
  • Funding: $150000
  • Contract Numbers:

    Project 20-44(24)

  • Sponsor Organizations:

    National Cooperative Highway Research Program

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

    American Association of State Highway and Transportation Officials (AASHTO)

    444 North Capitol Street, NW
    Washington, DC  United States  20001

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Project Managers:

    Barcena, Roberto

  • Performing Organizations:

    Texas A&M Transportation Institute, College Station

    Texas A&M University System
    3135 TAMU
    College Station, TX  United States  77843-3135
  • Principal Investigators:

    Martin, Amy Epps

  • Start Date: 20191219
  • Expected Completion Date: 20221215
  • Actual Completion Date: 20221215

Subject/Index Terms

Filing Info

  • Accession Number: 01724802
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 20-44(24)
  • Files: TRB, RIP
  • Created Date: Dec 10 2019 12:26PM