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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: Applicability of Test Specimen Results for the Description of the Behavior of Concrete in a Structure
Author(s): Michael D. Kotsovos and H. K. Cheong
Publication: Journal Proceedings
Appears on pages(s): 358-363
Keywords: compressive strength; concretes; cracking (fracturing); deformation;failure; loads (forces); specimens; static loads; stresses; stress-strain rela-tionships;triaxial stresses.
Abstract:The paper is concerned with an attempt to establish to what extent the behavior of an element of concrete in a structure is realistically described by stress-strain relationships obtained from tests on concrete specimens, such as cylinders, prisms, or cubes, subjected to various states of compressive stress. Although these relationships comprise an ascending and a gradually descending portion, it was found that only the ascending portion up to a certain stress level is sufficient to completely describe the behavior of concrete elements. The stress level is that at which the volume of the specimens becomes a minimum. Such behavior is shown to be due to interaction between adjacent concrete elements. The interaction produces a wholly compressive state of stress in some elements but causes, in turn, compression-tension stress conditions in adjacent elements, resulting in failure of the latter. Collapse of the structure occurs under a load level below or at the level at which the volume of elements subjected to wholly compressive states of stress becomes a minimum.
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