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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: Plastic Flow of Concrete at High Overlaod
Author(s): J. R. Shank
Publication: Journal Proceedings
Appears on pages(s): 493-498
Keywords: no keywords
Abstract:Neew data on the plastic flow of concrete prompted a reconsideration of the assumption that plastic flow is directly proportional to the unit stress applied. Tests are described in which deformations of 6 x 12-in. concrete cylinders were measured while undersustained loads approaching the ultimate strength. Plotted data are shown to demonstrate that the change in the rate of plastic flow appears to be uniform up to three-quarters or more of the ultimate strength with an abrupt change at the "true" ultimate strength. Included are other data indicating that the plastic flow curve has the same general form independent of time and applied load leading to a new consideration in expressing factor of safety and developing beam theories on a factor of safety basis.
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