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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: Influence of Path Dependency and
Moisture Conditions on the Biaxial Compression
envelope for normal weight concrete
Author(s): Michael A. Taylor and B. K. Patel
Publication: Journal Proceedings
Appears on pages(s): 627-633
Keywords: biaxial loads; compressive strength; concrete;
fineness modulus; loads (forces); mechanical tests; moist
curing; moisture content.
Abstract:Using 2 in. (50 mm) cubical specimens, biaxial compression strength envelopes were obtained for three strengths of 3/8 in. (9.5 mm) MSA normal weight aggregate concrete-2 ksi, 3 ksi, and 5 ksi (140, 210, and 350 kgf/cm*) The desired stress state and partial elimination of friction were achieved by loading the specimensthrough l/l 6 in. (1.6 mm) diameter ball bearings and using a specially designed two-channel, closed-loop electro-hydraulic testing facility. Envelopes were obtained for specimens dried after a standard curing period and for specimens kept continually saturated. Further studies examined the envelopes obtained under different loading histories. Results indicate that: Saturated concrete has a larger biaxial compression failure envelope than dry concrete. For saturated concrete, sequential loading gives strengths which appear to be only minimally smaller than proportional loadings. This is in contrast to previous obser-vations on dry specimens of lightweight concrete. [Au-thors]
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