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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: Fibrous Concrete Flexural Testing - Developing Standardized Techniques
Author(s): Ronald F. Zollo
Publication: Journal Proceedings
Appears on pages(s): 363-368
Keywords: fiber reinforced concretes; flexural tests; moments; performance
tests; specimens; statistical analysis.
Abstract:A compilation of the developments regarding standardized testing of fibrous concrete is contained in a report published by ACI Committee 544 in the Proceedings in July 1978. This paper takes a closer look at one of the suggested test procedures, namely the flexural test. Flexural tests were run varying shear span-to-depth ratio, fiber type, and matrix type. The utility of performance measures such as first crack stress, ultimate moment capacity, and toughness index is discussed. A statistical analysis of variance is used to determine the effect of those variables previously mentioned. Results indicate the utility of the most desirable (smallest) standard specimen size, as this affects the first crack strength and ultimate moment. It is concluded that the toughness index, as presently conceived, is not a viable measure of material system performance.
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