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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: Influence of Sea Water on Corrosion of Reinforcement
Author(s): R. Shalon and M. Rapheal
Publication: Journal Proceedings
Appears on pages(s): 1251-1268
Keywords: no keywords
Abstract:Over 400 reinforced mortar prisms mixed with water from the Mediterranean Sea were tested for corrosion of reinforcement at ages ranging from 3 months to 4 years. Variables studied were water-cement ratio, cement content, and storage conditions. The pH necessary for inhibition of corrosion by hydroxyl ions under different storage conditions was determined, and pH values of mortars and cement pastes made with sea water and fresh water were measured. The reinforcement was corroded in all specimens stored in moist air, but for mortar prisms stored in sea water or tap water practically no corrosion of reinforcement was observed. No regular relationship between consistency or cement content on the one hand and amounts of rust on the other was found. Corrosion did not halt but, with one exception, was still increasing as the study ended. Conclusion is drawn that sea water used for mixing mortar or concrete for air-exposed reinforced structures tends to make reinforcement highly vulnerable to corrosion.
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