CORROSION MONITORING SYSTEM FOR A MECHANICALLY STABILIZED EMBANKMENT EARTH REINFORCING SYSTEM. FINAL REPORT

This report describes the materials, instrumentation and installation of a corrosion monitoring system for a mechanically stabilized embankment (MSE) using galvanized bar mats. Initial monitorng measurements taken during the first 16 months after construction are included. The monitoring system was designed from off-the-shelf materials to measure the long-term performance of the galvanized coating on the reinforcing mats in the embankment built during the summer of 1987. The monitoring system uses buried reference electrodes made of bare steel bars, galvanized steel bars and zinc anodes. Voltage comparisons can be made between the reinforcing elements and the reference electrodes in the embankment to determine when the zinc coating becomes consumed due to corrosion. All reference electrodes were fitted with redundant wiring to allow for future polarization resistance measurements. Physical dimensions were also determined for all electrodes. Initial short-term monitoring results indicate that voltage changes of the reinforcing elements in the embankment can be successfully measured. Additional monitoring to determine the long-term corrosion performance of these elements is recommended.

  • Corporate Authors:

    California Department of Transportation

    Transportation Laboratory
    5900 Folsom Boulevard
    Sacramento, CA  United States  95819
  • Authors:
    • Coats, D M
    • TKACHEFF, W
    • Parks, D M
  • Publication Date: 1990-4

Media Info

  • Features: Appendices; Figures; Photos; References; Tables;
  • Pagination: 58 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00496655
  • Record Type: Publication
  • Report/Paper Numbers: CA/TL-89/14, Rept 641143
  • Contract Numbers: F87TL73
  • Files: TRIS, STATEDOT
  • Created Date: Aug 31 1990 12:00AM