ELECTRICALLY CONDUCTIVE ASPHALT MIXES FOR THE CATHODIC PROTECTION OF CONCRETE BRIDGE DECKS

The paper reports on testing in Ontario, Canada, which show it is possible to protect concrete bridge decks against corrosion of the rebars by applying cathodic protection to the deck. This protection requires that a conductive asphaltic concrete mix be spread over the deck to distribute the protective power. Two mixes which had been developed have proved satisfactory electrically and indications suggest that they will stand up under normal weather and traffic conditions. The amount of power required to protect a deck is very small. The success of cathodic protection on the bridge decks was shown by the cessation of corrosion as indicated by resistance probes buried in the decks.

• Supplemental Notes:
  • Proceedings of the Asphalt Paving Technologists' Technical Session held in New Orleans, La on Feb 16-18, 1976.
• Corporate Authors:

  University of Minnesota, Minneapolis

  155 Experimental Engineering Building
  Minneapolis, MN  United States  55455
• Authors:
  • Fromm, H J
• Conference:
  • Association of Asphalt Paving Technologists Proc
• Publication Date: 0

Subject/Index Terms

• TRT Terms: Asphalt; Asphalt mixtures; Bridge decks; Cathodic protection; Concrete; Corrosion protection; Corrosion resistance; Electrical conductivity; Electrical resistivity; Highway bridges; Material reinforcement; Reinforced concrete; Reinforcing bars
• Uncontrolled Terms: Rebars
• Old TRIS Terms: Decks; Resistivity
• Subject Areas: Bridges and other structures; Highways; Materials; Pavements;

Filing Info

• Accession Number: 00158342
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Oct 13 1977 12:00AM