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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: Stress-Strain Curves of Normal and Lightweight Concrete in Compression
Author(s): P. T. Wang, S. P. Shah, and A. E. Naaman
Publication: Journal Proceedings
Appears on pages(s): 603-611
Keywords: compression tests; compressive strength; concretes; high-strength concretes; lightweight concretes;stress-strain relationships;structural analysis;test equipment; ultimate strength method.
Abstract:A relatively experimental technique is used to obtain the stress-strin curves of concretes up to a strain of 0.006. The stress-strian curves of normal weight concretes of strengths up to 11,000 psi and lightweight concrete of strengths up to 8000 psi are reported. An analytic expression for the stress-strain curve of concree is developed to reflect experimental results. The analytic expression has four constants which depend on the properties of both the ascending and descending portions of the stress-strain curve and can be evaluated from the knowledge of four key points of the curve. The coordinates of the four key points were expressed in function of the compressive strength of concrete so as to allow prediction of the entire curve solely from the knowledge of the compressive strength.
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