SOME PHENOMENA OF MACROCELL CORROSION. CORROSION OF REINFORCEMENT IN CONCRETE. PAPERS PRESENTED AT THE THIRD INTERNATIONAL SYMPOSIUM ON "CORROSION OF REINFORCEMENT IN CONCRETE CONSTRUCTION", BELFRY HOTEL, WISHAW, WARWICKSHIRE, MAY 21-24, 1990

The research aims to investigate: (1) macrocell corrosion phenomenon in concrete of which both anode and cathode were in separate parts and subjected to various conditions, and (2) effect of water/cement (w/c) ratio and cover depth over a cathode and Ac/Aa ratio on the corrosion during propagation at the anode. The polarity and current reversals were found and is presumed to be due to primarily to oxygen. The restriction of the anode dissolution in concrete may outweigh the other parameters around the cathode such as Ac/Aa ratio. During propagation of the steel anode, the 0.40-0.70 w/c concretes over the cathode had greater effect on anode dissolution than the 20-50 mm cover depths.(A) For the covering abstract of the conference see IRRD 831449.

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  • Corporate Authors:

    Elsevier Science Publishers

    Crown House, Linton Road
    Barking, Essex IG11 8JU,   England 
  • Authors:
    • Suzuki, K
    • Ohno, Y
    • Praparntanatorn, S
    • Tamura, H
  • Publication Date: 1990

Language

  • English

Media Info

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Filing Info

  • Accession Number: 00606803
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • ISBN: 1-85166-487-4
  • Files: ITRD, TRIS
  • Created Date: Mar 31 1991 12:00AM