Impact of Deicing Salts on Corrosion Rates of MSE Reinforcement

The service life of mechanically stabilized earth (MSE) wall systems is estimated based on assumed rates of soil reinforcement corrosion that correspond to mild or moderate corrosive conditions in the soil backfill. The assumption is deemed valid when certain electrochemical properties of the soil backfill, namely electrical resistivity, pH, chloride and sulfate contents, are within specified limits. This approach relies on evaluation of the soil backfill in its initial condition but does not account for changes that may occur in the electrochemical properties of the soil backfill when it is exposed to deicing salts under service conditions. This research will evaluate corrosion rates in steel MSE reinforcement and embedded MSE backfill materials under different levels of exposure to deicing chemicals. This will be accomplished by conducting a detailed laboratory test program that will include applicable material characterization tests and corrosion tests. The test program will examine a range of backfill materials. Special emphasis will be placed on coarse graded backfill recommended for use in high salt exposure environments.


    • English


    • Status: Active
    • Contract Numbers:


      SPTC 14.1-36

    • Sponsor Organizations:

      Texas Tech University, Lubbock

      2500 Broadway
      Lubbock, TX  United States  70409

      Research and Innovative Technology Administration

      University Transportation Centers Program
      1200 New Jersey Avenue
      Washington, DC  United States  20590
    • Performing Organizations:

      Texas Tech University, Lubbock

      2500 Broadway
      Lubbock, TX  United States  70409
    • Principal Investigators:

      Seo, Hoyoung

      Lawson, William

      Jackson, Andrew

      Bae, Sangwook

      Jayawickrama, Priyantha

    • Start Date: 20140601
    • Expected Completion Date: 0
    • Actual Completion Date: 20160531
    • Source Data: RiP Project 37440

    Subject/Index Terms

    Filing Info

    • Accession Number: 01543052
    • Record Type: Research project
    • Source Agency: Southern Plains Transportation Center
    • Contract Numbers: DTRT13-G-UTC36, SPTC 14.1-36
    • Files: UTC, RiP
    • Created Date: Nov 4 2014 1:00AM