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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: Freezing and Thawing Resistance of Concrete Using Shrinkage-Reducing Admixture
Author(s): H. Kamimoto, K. Ishikawa, and Y. Uchida
Publication: Special Publication
Appears on pages(s): 415-430
Keywords: air content; shrinkage (drying); surface tension
Abstract:Shrinkage-reducing admixtures currently available in the market serve for controlling cracks occurring in concrete due to reduction in the shrinkage stresses from drying by relieving the surface tension of free water in concrete. However, it is generally believed that freezing and thawing resistance of concrete would be decreased when shrinkage-reducing admixture is used, and presumably this can cause problems in cold and snowy regions, In this study, analytical examinations were carried out by focusing attention on the molecular structure of a shrinkage-reducing admixture and methods of its application for the purpose of improving freezing and thawing resistance of concrete. As the result, it was found that freezing and thawing resistance could be improved if concrete is mixed with delayed adding method of shrinkage-reducing admixture.
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