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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: Shear Strength of Lightweight Aggregate Reinforced Concrete Flat Plates
Author(s): R. D. Mowrer and M. D. Vanderbilt
Publication: Journal Proceedings
Appears on pages(s): 722-729
Keywords: expanded shale aggregates;flat plates (concrete);lightweight aggregate concretes;lightweight aggregates;reinforced concrete;research;shear strength; slabs;specimens;testing
Abstract:Test results of 51 reinforced concrete specimens assumed to represent the portion of a flat plate bounded by a line of contraflexure around an interior column are reported. Forty-three of the slabs were constructed using an expanded shale aggregate and eight contained normal weight sand and gravel aggregate. Nine of the lightweight slabs were loaded to failure with two or four edges clamped and the other slabs were tested with all edges simply supported. The analyses showed that none of the empirical shear strength equations in existence served consistently to predict the strengths of the current test specimens. A new type of test specimen which closely simulates the portion of an interior panel around a column is described. Tests of this type of specimen should lead to a more precise definition of the shear strength of flat plates.
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