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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: Path Dependent Biaxial Compressive Testing of an All-Lightweight Aggregate Concrete
Author(s): Michael A. Taylor, Arun K. Jain, and Melvin R. Ramey
Publication: Journal Proceedings
Appears on pages(s): 758-764
Keywords: biaxial loads;compression;compressive strength;failure mechanisms;lightweight
aggregate concretes;lightweight aggregates;loads (forces);strains;stresses;test equipment;tests.
Abstract:Using 2-in. cubical specimens, biaxial compression-compression envelopes were obtained for three strengths of 3/8 in. (10mm) MSA all-lightweight aggregate concrete: 2 ksi, 3.5 ksi, and 5 ksi (140, 245 and 350 kgf/cm^2). The desired stress state and the elimination of fricition were achieved by loading the specimens through wire bristle compression platens in a specially designed two-channel, closed-loop, electro-hydraulic testing facility. In contrast to a previous investigation, the shape of the failure envelo was found to differ from that for regular weight concrete. Furthurmore, an investigation of the influence of loading path showed that two-step sequential loadings result in strengths significantly lower than those obtained by proportional loadings.
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