CATHODIC PROTECTION OF REBAR IN CONCRETE BRIDGE DECKS

The problem of corrosion of steel in reinforced concrete bridge decks is outlined. Cathodic protection has been applied to four bridge decks in Ontario to halt this corrosion and the techniques used are described. Both slab decks on beams and a post-tensioned deck were protected. The distribution of power across the decks was studied, and the best configuration of anodes to deliver the power was determined. Two types of electrically conductive mix are described. The methods of detecting the polarized voltage on the steel were studied and a successful system is described. The depth of protection of the steel into the decks is discussed. /Author/

  • Availability:
  • Corporate Authors:

    National Association of Corrosion Engineers

    P.O. Box 1499
    Houston, TX  United States  77001
  • Authors:
    • Fromm, H J
  • Publication Date: 1977-11

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00184972
  • Record Type: Publication
  • Source Agency: Materials Performance
  • Files: TRIS
  • Created Date: Feb 27 1979 12:00AM