Continued Implementation of High Performance Thin Overlays in Texas Districts

Under research project 0-5598, guidelines and specifications were developed on how a District could design and construct long life overlays using the concept of the balance mix design. These new roadway surfaces must be designed to have a good combination of both rutting and cracking resistance. The process involves identifying District local sources of quality aggregates and developing both mixture type and performance test requirements to meet each District's needs. Assistance is also required for specification and plan note development and for helping during construction to ensure a quality controlled new surface is being placed. Training materials were also developed in Study 0-5598 describing the best ways to select, design and construct these high performance overlays. The recommendations of the 0-5598 study have been well received by a number of Districts. In the most recently completed study, overlay sections were designed and constructed in the Lufkin, Bryan, Brownwood and San Antonio Districts.


  • English


  • Status: Completed
  • Funding: $260000.00
  • Contract Numbers:


  • Sponsor Organizations:

    Texas Department of Transportation

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

    Adams, Joe

  • 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:

    Scullion, Tom

  • Start Date: 20140219
  • Expected Completion Date: 0
  • Actual Completion Date: 20160831
  • Source Data: RiP Project 39975

Subject/Index Terms

Filing Info

  • Accession Number: 01569091
  • Record Type: Research project
  • Source Agency: Texas Department of Transportation
  • Contract Numbers: 5-5598-05
  • Files: RiP, STATEDOT
  • Created Date: Jul 1 2015 2:46AM