Research on Joint Seal Materials to Improve Installation and Performance

Joints in Portland cement concrete (PCC) pavement are sealed with proper sealant materials to prevent intrusion of water and incompressible materials. Intrusion of water could result in corrosion of dowels or tie bars in concrete pavement contraction design (CPCD), and tie bars or longitudinal steel in continuously reinforced concrete pavement (CRCP). Intrusion and collection of incompressible materials could cause surface spalling. Another important failure mechanism in PCC pavement in Texas is erosion of base materials caused by water infiltration along longitudinal joints between the outside concrete lane and asphalt shoulder. To improve the performance of PCC pavement, it is important to keep the joint seals in a good condition so that water and incompressible materials cannot get into joints. There are three elements associated with joint seal performance: (1) proper joint design, (2) quality of joint seal materials, and (3) proper installations. Currently, joint design is dictated in the joint design standards, JS-94. Joint seal material quality is controlled by DMS-6310. Joint sealant installation is governed by Item 438. There are discrepancies between Texas Department of Transportation (TxDOT) requirements and actual practice, potentially compromising the effectiveness of joint performance. The discrepancies need to be identified and design standards or specifications revised or field practices modified.


  • English


  • Status: Completed
  • Funding: $203285.00
  • Contract Numbers:


  • Sponsor Organizations:

    Texas Department of Transportation

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

    Pete, Kevin

  • Performing Organizations:

    Texas Tech University, Lubbock

    Office of Research Services
    349 Administration
    Lubbock, Texas  United States  79409-1053
  • Principal Investigators:

    Won, Moon

  • Start Date: 20140711
  • Expected Completion Date: 0
  • Actual Completion Date: 20160131
  • Source Data: RiP Project 39899

Subject/Index Terms

Filing Info

  • Accession Number: 01567084
  • Record Type: Research project
  • Source Agency: Texas Department of Transportation
  • Contract Numbers: 0-6826
  • Files: RiP, STATEDOT
  • Created Date: Jun 24 2015 1:01AM