NBX TESTS EPOXIES TO PROTECT BRIDGES

The National Bureau of Standards under contract by FHWA has been testing various epoxies in an effort to provide protective coatings for the steel reinforcing bars used in bridges. By providing corrosion resistance to deicing salts, seawater, etc., with the epoxy coatings, maintenance and repair costs can be greatly reduced. Although the initial cost of constructing a bridge with coated reinforcing bars is more expensive, it is more economically feasible in the long run as a result of the elimination of maintenance. After much testing, four powder epoxies have been found to be more adequate than the liquid epoxies since they do not require mixing and coat more evenly. An electrostatic spray gun is the quickest and most efficient means of application. Epoxy-coated bars can be employed in other concrete structures such as parking gargaes and offshore drilling facilities as well as in bridges.

  • Corporate Authors:

    National Bureau of Standards

    Department of Commerce, Office of Technical Publications
    Washington, DC  USA  20234
  • Publication Date: 1975-4

Media Info

  • Features: Photos;
  • Pagination: 2 p.
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00097041
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 27 1975 12:00AM