SOME ASPECTS OF STRAY-CURRENT CORROSION IN REINFORCED CONCRETE

In this paper a review is presented on the mechanism of electrolysis corrosion of reinforced concrete resulting from D-C current leakage through the concrete, i.e. stray current corrosion. It is shown that the corrosion process is influenced by the electrical conductivity of the concrete and the magnitude of the applied D-C potential. Experimental studies were concerned with factors influencing the electrical conductivity of concrete and the effect of electrolysis on the steel electrodes. The results indicated that the resistance of young concrete was of the order of several hundred ohms and that the resistance increased with time. Further, the presence of chloride ions, either in the storage environment of as an admixture, produced early failure of the concrete and severe anodic corrosion. In general, electrolysis corrosion resulted in a decrease in ultimate tensile strength and extension at fracture of the cold rolled steel electrodes. (A)./TRRL/

  • Supplemental Notes:
    • Presented at the 1st Australian Conference on Engineering Materials.
  • Corporate Authors:

    University of New South Wales

    School of Civil Engineering, Anzac Parade
    Kensington, New South Wales  Australia  2033
  • Authors:
    • COOK, D J
    • Ninnes, G J
  • Publication Date: 0

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: 15 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00126546
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: Conf Paper
  • Files: ITRD, TRIS
  • Created Date: Apr 21 1976 12:00AM