REPAIR OF SALT DAMAGED CONCRETE STRUCTURES . PROTECTION OF CONCRETE. PROCEEDINGS OF THE INTERNATIONAL CONFERENCE HELD AT THE UNIVERSITY OF DUNDEE, SEPTEMBER 11-13, 1990

Concrete structures develop all kinds of deteriorative phenomena, by being subjected to various deteriorative actions caused by the environmental conditions under which they have been built and use conditions. Of the various deteriorative actions, corrosion of the reinforcing bars caused by chlorides is discussed in this report, taking up a representative case of repair conducted for a concrete structure suffering from salt injury. The structure which was the object of repair consisted of a PC bridge built over the sea. Roughly 17 years had passed since it was completed. Prior to repair, a detailed survey was conducted to obtain an overall understanding of the damaged state. The survey consisted of an appearance survey on deterioration such as cracking and exfoliation of concrete, and an internal deterioration survey including an examination of the chloride content in concrete and the state of rebar corrosion. A coating method which combines rust-inhibiting treatment with sectional repair and coating of the concrete surface was adopted. Execution was completed in roughly two months, during which time, strict execution control was effected based on the control items set up for each step of work. (Author/TRRL)

  • Availability:
  • Corporate Authors:

    E and F Spon Limited

    2-6 Boundary Road
    London,   England 
  • Authors:
    • Kamijoh, T
  • Publication Date: 1990

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Filing Info

  • Accession Number: 00620014
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: O-419-15490-6
  • Files: ITRD, TRIS
  • Created Date: Mar 31 1992 12:00AM