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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: Variablility and Mean Value of Strength of Concrete as Function of Load
Author(s): B. Zech and F. H. Wittmann
Publication: Journal Proceedings
Appears on pages(s): 358-362
Keywords: dynamic loads; dynamic tests; flexural strength; impact; impact strength; impact tests; loading rate; loads (forces); mortars (material); shock resistance; variablility.
Abstract:Properties of concrete under high rate of loading have gained increasing interest in recent years. Experiments to study the influence of rate of loading on flexual strength of mortar bars are described. Bending of the bars which are loaded by a falling missile is measured by means of a transient recorder. The ultimate stress and strain at failure are determeined. A high and a low strength mortar have been tested. A theoretical approach publiched earlier explains satisfactorily the experimental findings. Within the reached range of accuracy it is found that the coeffiecinet of variability of strength of mortar remains unchanged as the rate of loading increases.
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