TRC2002 - Investigating Calcium Sulfoaluminate (CSA) Cement and Sacrificial Anodes

Calcium Sulfoaluminate (CSA) Cement is a rapid setting hydraulic cement similar to Portland cement with a very fast strength gain. If a typical Portland cement concrete mixture can reach 4,500 psi in 28 days, the complementary CSA cement mixture would reach 4,500 psi in 4 hours. Because of this extremely fast strength gain, CSA cement is an ideal material for repairs. Arkansas Department of Transportation (ARDOT) currently utilizes CSA cement for bridge deck repair, but corrosion issues tend to arise in the patched area due to several factors. One objective of this project is to evaluate the effectiveness of using sacrificial anodes when patching bridge decks with CSA cement mixtures in regards to corrosion inhibition and repair longevity. This will be accomplished by patching sections of a bridge deck with the anodes included and monitoring the corrosion and wear of the patch compared to other patches that were placed without anodes. The other objectives include: evaluating the feasibility of ARDOT using CSA cement for full depth repairs of roadways and determining an appropriate mix design for ARDOT to use CSA cement for full-depth repairs of roadways.

    Project

    • Status: Active
    • Funding: $190200
    • Sponsor Organizations:

      Federal Highway Administration

      1200 New Jersey Avenue, SE
      Washington, DC  United States  20590
    • Managing Organizations:

      Arkansas Department of Transportation

      P.O. Box 2261
      Little Rock, AR  United States  72203
    • Project Managers:

      Borgeson, JD

    • Performing Organizations:

      Arkansas Department of Transportation

      P.O. Box 2261
      Little Rock, AR  United States  72203
    • Principal Investigators:

      Borgeson, JD

    • Start Date: 20190812
    • Expected Completion Date: 20210630
    • Actual Completion Date: 0

    Subject/Index Terms

    Filing Info

    • Accession Number: 01708821
    • Record Type: Research project
    • Source Agency: Arkansas Department of Transportation
    • Files: RiP, STATEDOT
    • Created Date: Jun 27 2019 10:33AM