Development of Rational CPCD Pavement Design Procedures

The usage of CPCD (Concrete Pavement Contraction Design) has been quite limited in Texas since the TxDOT policy of utilizing CRCP was enacted in 2010. That policy was based on rather poor performance of CPCD built on poor slab support and/or without dowels. The new requirement of CoTE of concrete for CRCP will undoubtedly increase the use of CPCD in Texas. The current TxDOT pavement design method for CPCD is based on the method in the AASHTO 93 Pavement Design Guide, which was developed from the findings in the AASHO Road Test. However, the pavement structures evaluated in the AASHO Road Test are quite different from those currently in use in Texas. Accordingly, the distress types and their mechanisms observed in the AASHO Road Test are quite different from those observed in Texas, which implies that the current TxDOT pavement design method for CPCD may not be the most accurate and efficient one to be used in Texas. An improved CPCD design procedure is needed that accurately reflects the pavement behavior and performance in Texas. An improved procedure will result in more realistic and optimized pavement structures. This design procedure could be used for the development of catalog design, if TxDOT deems desirable.

Language

  • English

Project

  • Status: Completed
  • Funding: $318978
  • Contract Numbers:

    0-6951

  • Sponsor Organizations:

    Texas Department of Transportation

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

    Jensen, Darrin

  • Performing Organizations:

    Center for Multidisciplinary Research in Transportation (TechMRT)

    Texas Tech University
    Box 41023
    Lubbock, Texas  United States  79409-1023
  • Principal Investigators:

    Won, Moon

  • Start Date: 20170901
  • Expected Completion Date: 20190831
  • Actual Completion Date: 20190831

Subject/Index Terms

Filing Info

  • Accession Number: 01648608
  • Record Type: Research project
  • Source Agency: Texas Department of Transportation
  • Contract Numbers: 0-6951
  • Files: RiP, STATEDOT
  • Created Date: Oct 20 2017 10:01AM