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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 > Tools > Frequently Asked Questions
Q. What is the effect of water-reducing admixtures on drying shrinkage? A. Very little. Although the use of water-reducing admixtures will permit a reduction in water content of the concrete mixture, it will usually not result in a decrease in drying shrinkage. Actually some of the admixtures may even increase the early shrinkage; although, later shrinkage will be about the same as that of comparable mixtures without the admixture (ACI 224R). References: SP-1(02); E4-12; ACI 212.3R-16; SP-288; ACI 224R-01 Topics in Concrete: Admixture; Concrete Fundamentals; Durability; Shrinkage
Q. What is the effect of water-reducing admixtures on drying shrinkage?
A. Very little. Although the use of water-reducing admixtures will permit a reduction in water content of the concrete mixture, it will usually not result in a decrease in drying shrinkage. Actually some of the admixtures may even increase the early shrinkage; although, later shrinkage will be about the same as that of comparable mixtures without the admixture (ACI 224R).
References: SP-1(02); E4-12; ACI 212.3R-16; SP-288; ACI 224R-01
Topics in Concrete: Admixture; Concrete Fundamentals; Durability; Shrinkage
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