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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: Maximum Aggregate Size Effect on Frost Resistance of Concrete
Author(s): Cameron MacInnis and Eddie C. Lau
Publication: Journal Proceedings
Appears on pages(s): 144-149
Keywords: aggregate size;aggregates;air-entrained concretes;concrete durablity; concretes; exposure;freeze-thaw durablity;freezing;research;saturation;volume change;water-cement ratio.
Abstract:A one-cycle freezing test was used to demonstrate the effect of maximum size of aggregate on the frost resistance of concrete at a variety of water-cement ratios and degrees of saturation. After being cured for a period of at least 1 month the 3 x 6 in. concrete specimens were conditioned to various degrees of saturation, to simulate different exposure conditions. Frost susceptablity of various specimens was determined from the length change patterns produced in the freezing test. Maximum size of aggregate was shown to have a great effect on frost resistance. For example, the 1/4 in. maximum aggregate size specimens showed expansions during freezing, only when the water-cement ratio was as high as 0.60, while 3/4 in. maximum aggregate specimens showed expansions at a water-cement ratio as low as 0.45.
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