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.
- Prepared in cooperation with Federal Highway Administration, Washington, D.C.
Michigan Department of State Highways & TransportResearch Laboratory Section
Lansing, MI USA 48904
Washington, DC USA 20590
- Permoda, A J
- Gabel, A R
- Publication Date: 1974-6
- Pagination: 79 p.
- TRT Terms: Aluminum alloys; Barriers (Roads); Bridge decks; Bridges; Concrete; Corrosion; Highways; Low alloy steel; Paint; Protective coatings; Steel; Zinc coatings
- Uncontrolled Terms: Barriers
- Subject Areas: Bridges and other structures; Highways;
- 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