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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: Novel Clay-Mitigating Polymers for Robust Water-Reducing Admixtures
Author(s): Lawrence L. Kuo, Robert J. Hoopes, Angel Abelleira, Pung Chan, and Qingye Zhou
Publication: Concrete International
Appears on pages(s): 43-46
Keywords: polycarboxylate, aggregate, test, dosage
Abstract:A new class of clay-mitigating admixtures has been developed to mitigate absorption of polycarboxylate-based high-range water-reducing admixtures by clay-bearing aggregates. This absorption can cause reduced dosage efficiency and increased slump loss over time, thereby resulting in increased dosage rates for polycarboxylate-based admixtures. The article summarizes field tests that show that these clay-mitigating admixtures provide a robust solution when used with a wide array of clay-bearing aggregates.
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