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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Corrosion of Prestressed Wire in Concrete
Author(s): G. E. Monfore and G. J. Verbeck
Publication: Journal Proceedings
Appears on pages(s): 491-516
Abstract:After a brief review of the various types of corrosion, the few corrosion failures which have occurred in pre-stressed wire in concrete are discussed. The failure in the Regina, Sask., Canada, water supply line is examined in detail. A summary of the laboratory investigations of corrosion of prestressed wire in concrete that have been reported in the literature is followed by an account of the studies carried out in the laboratories of the Portland Cement Association. These latter studies included tests of the effects on corrosion of such factors as type of cement, type of wire, wire stress, addition of calcium chloride, cur-in conditions, storage conditions, and voids in the concrete a 8 jacent to the wires. Many of the tests were evaluated by determination of the reduction in tensile strength of the wires. Field and laboratory observations indicate clearly that calcium chloride in concrete may lead to serious cor-rosion of prestressing steel. Because of this hazard, it is recommended that calcium chloride not be used in prestressed concrete.
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