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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: Effect of Pore Structure in Concrete on Frost Resistance
Author(s): H. Yamashita, K. Sakai and T. Kita
Publication: Special Publication
Appears on pages(s): 919-932
Keywords: Air-entrainment; freeze thaw durability; pore size distribution; strains.
Abstract:Frost damage of concrete gradually proceeds due to freezing and thawing of water in pore structure. The main cause is the expansion of frozen water, which is influenced by pore size distribution and air void spacing factor. This study focuses on the pore size distribution and the air void spacing factor. Freezing and thawing tests were conducted and the expansion was measured. Based on the test results, a strain model was proposed. Furthermore, the pore size distribution and the air void spacing factor were measured for different areas of an actual structure, and the degree of deterioration in the structures was compared with the expansion volume calculated using the model. It is found that the strain model represented the frost-resistance of concrete taking into account the difference of the pore size distribution and the air void spacing factor. That model also simulated the deterioration of an actual structure.
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