INITIAL ANALYSIS OF CATHODIC PROTECTION SYSTEMS ON U.S. 87 RAILROAD OVERPASS BRIDGE - BIG SPRING, TEXAS. INTERIM REPORT

Five individual cathodic protection systems were installed on the U.S. 87 Missouri-Pacific Railroad overpass structure in Big Spring, Texas. The cathodic protection systems were installed in October 1988 as a demonstration project to compare the various systems. Three distributed anode types were used to protect the bridge deck: (1) titanium mesh; (2) conductive polymer; and (3) carbon strand. A hot-sprayed zinc conductive coating anode was applied to sidewalks and a median on the bridge deck, and a conductive paint anode was applied to a bridge bent. Performance data have been collected for each system since installation. The titanium mesh anode continues to function while the conductive polymer anode has failed and the carbon strand anode exhibits instability. The hot-sprayed zinc anode system failed early in the study and the conductive paint anode system shows signs of failure.

  • Corporate Authors:

    Texas Tech University, Lubbock

    P.O. Box 4089
    Lubbock, TX  United States  79409

    Texas Department of Transportation

    Transportation Planning Division, P.O. Box 5051
    Austin, TX  United States  78763

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Parker, H W
    • Nash, P T
    • Feingold, R W
  • Publication Date: 1992-5-29

Language

  • English

Media Info

  • Features: Appendices; Figures;
  • Pagination: 72 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00662780
  • Record Type: Publication
  • Report/Paper Numbers: Res Study 1-10-85-500, Res Rept 500-1
  • Files: TRIS, USDOT, STATEDOT
  • Created Date: Jul 5 1994 12:00AM