PROTECTIVE COATINGS FOR HIGHWAY METALS

This report relates steps taken to minimize coatings maintenance on metal appurtenances; particularly steel beam guardrail, bridge railings, and bridge structural steel girders. The Department has found that galvanizing guardrail and bridge railings yields a coating system that protects the materials at least twice as long as paints. In the course of these studies, a variety of alternative railing materials were tried including aluminum-alloy, unpainted low alloy steel, and concrete. For coating bridge structural steel girders, the Department has conducted laboratory screening tests on paint systems followed by in-service tests of the superior systems. Various coatings systems and Departmental specification revisions are discussed. Recently, the Department has required that low alloy, unpainted steel be used for bridge girders.

  • Supplemental Notes:
    • Prepared in cooperation with Federal Highway Administration, Washington, D.C.
  • Corporate Authors:

    Michigan Department of State Highways & Transport

    Research Laboratory Section
    Lansing, MI  United States  48904

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Permoda, A J
    • Gabel, A R
  • Publication Date: 1974-6

Media Info

  • Pagination: 79 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00090165
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: R-916 Final Rpt.
  • Files: NTIS, USDOT, STATEDOT
  • Created Date: Apr 22 1975 12:00AM