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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: Properties of Concrete Change When Microcracking Occurs
Author(s): J. Isenberg
Publication: Special Publication
Appears on pages(s): 29-42
Abstract:Fracture of plain concrete under biaxial tensile and compressive stress is investigated. The stress states at inception of microcracking, or discontinuity, and strength are found. Such properties as strength, stiffness and mode of breaking alter with the extent of microcracking in a specimen; the extent of microcracking depends on loading program. Explanations of fracture which overlook these subjects by considering only mean stress at breaking may be faulty. The curve of discontinuity is suggested as a simple, safe criterion of strength for some problems of engineering design.
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