CORROSION EVALUATION OF EPOXY-COATED, METALLIC-CLAD AND SOLID METALLIC REINFORCING BARS IN CONCRETE

This technical summary announces the key findings of a Federal Highway Administration (FHWA) study that is fully documented in a separate report of the same title (FHWA-RD-98-153). The study, conducted from 1993 to 1998, developed and tested cost-effective "new breeds" of organic, inorganic, ceramic, and metallic coatings, as well as metallic alloys that can be utilized on or in steel reinforcement for embedment in portland cement concrete. Briefly, it was found that Type 316 stainless-steel reinforcing bars should be considered at the design stage as a potential method for obtaining a 75- to 100-year design life. However, due to the significant cost of these bars, their use should be limited to marine substructures, tunnels and bridges where road closures cannot be economically made. The research supports the continued use of epoxy-coated reinforcing bars as a corrosion-protection system for bridge decks, and recommends that cracks in the concrete be repaired to optimize the epoxy-coated bar life.

• Corporate Authors:

  Federal Highway Administration

  Turner-Fairbank Highway Research Center, 6300 Georgetown Pike
  McLean, VA  United States  22101
• Publication Date: 1998-11

Language

• English

Media Info

• Pagination: 4 p.
• Serial:
  • TechBrief
  • Publisher: Federal Highway Administration
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Alloys; Corrosion resistance; Corrosion resistant steel; Costs; Epoxy coatings; Metal coatings; Reinforced concrete; Reinforcing bars; Service life; Stainless steel
• Subject Areas: Design; Finance; Geotechnology; Highways; Materials; I34: Steels and Metals;

Filing Info

• Accession Number: 00763099
• Record Type: Publication
• Report/Paper Numbers: FHWA-RD-98-176
• Files: TRIS, USDOT
• Created Date: Apr 21 1999 12:00AM