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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: Strains and Stresses of Concrete at Initiation of Cracking and Near Failure
Author(s): M. F. Kaplan
Publication: Journal Proceedings
Appears on pages(s): 853-880
Abstract:Microcracking of concrete, in conventional short-time flexure, splitting, direct tension, and compression tests, was investigated using an electrical resistance strain gage technique. Cracking was found to occur at loads consider-ably less than those required to cause ultimate failure. Tensile stresses and strains, at cracking, depended on the voiume of coarse aggregate in the mix; the greater this volume, the lower the stresses and strains.The results suggest that the initiation of cracking may be more dependent on strain than on stress. Tensile and com pressive stresses and strains, at or near ultimate failure, may also be affected by the volume of coarse aggregate.
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