Validation of RAP and/or RAS in Hydraulic Cement Concrete

Reclaimed or recycled asphalt pavement (RAP) and recycled asphalt shingles (RAS) have been widely used in hot mix asphalt (HMA) in Texas. However, a high volume of RAP is still available in a form of stockpiles along the Receiving Agency's (hereafter referred to as "Texas Department of Transportation" or "TxDOT") highways or at hotmix asphalt concrete (HMAC) producers' plants, in spite of their use by the asphalt industries. Ground RAS from manufacturers and post-consumer uses are also available. The possible use of RAP and RAS in Portland cement concrete (PCC) not only would help dispose of excess RAP and RAS, but also provide a cost reduction for aggregates in hydraulic cement concrete with additional benefits of improvement in concrete performance. Previous research has indicated that the use of RAP as aggregate replacement in concrete paving mix appears to be not only feasible, but also offers the possibility of improving the performance of concrete pavement. Therefore, it is very important to validate the earlier findings; i.e., addition of RAP and RAS will actually enhance the performance of concrete belonging to different classes while allowing recyclable products to be used.


  • English


  • Status: Active
  • Contract Numbers:


  • Sponsor Organizations:

    Texas Department of Transportation

    125 E. 11th Street
    Austin, TX  United States  78701-2483
  • Project Managers:

    Odell, Wade

  • 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:

    Mukhopadhyay, Anol

  • Start Date: 20150128
  • Expected Completion Date: 0
  • Actual Completion Date: 20170131
  • Source Data: RiP Project 39156

Subject/Index Terms

Filing Info

  • Accession Number: 01569107
  • Record Type: Research project
  • Source Agency: Texas Department of Transportation
  • Contract Numbers: 0-6855
  • Files: RiP, STATEDOT
  • Created Date: Jul 1 2015 2:46AM