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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: Effects of the Moisture Condition of Concrete on Steel Corrosion
Author(s): K. Yamamoto and Y. Masuda
Publication: Special Publication
Appears on pages(s): 537-554
Keywords: chloride ions; electrochemical measurements; moisture condition; reinforcement corrosion
Abstract:Moisture conditions of concrete are critical factors in the Corrosion of reinforce- ment. In this study, various electrochemical measurements were conducted using reinforcement in concretes with the moisture content adjusted to various values to evaluate the corrosion tendencies of reinforcement, thereby investigating the effect of the moisture conditions of concrete on reinforcement corrosion. The anodic dissolution current was found to increase as the moisture content of concrete increased, increasing the corrosion tendencies of reinforcement. With a relative moisture content of 60% or less, reinforcement corrosion is significantly suppressed even when chloride ions are present at a rate of 5.0 kg/m3. In the range of this study, the critical relative moisture content, above which reinforcement corrosion is significantly accelerated, fell in the range of 50 to 60%.
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