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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: Effect of Curing on the Properties Affecting
Shrinkage Cracking of Concrete Block
Author(s): J. C. Saemann, C. Warren, and G. W. Washa
Publication: Journal Proceedings
Appears on pages(s): 833-852
Keywords: no keywords
Abstract:This investigation attempted to establish relationships between curing procedures and properties that influence shrinkage cracking of concrete block. Shrinkage cracks are influenced by the strength and stiffness properties of the concrete as well as its tendency to shrink because of moisture and temper-ature changes. In resisting cracking the tensile strength, notably weak for concrete, and t,he amount of strain accompanying a given stress must be considered. This latter factor is complicated by the fact that concrete tends to deform continuously at a decreasing rate under constant stress. Thus, the ratio of stress to strain is much lower when concrete sustains a load for a long time. Tests were made to determine modulus of rupture, compressive strength, tensile strength, modulus of elasticity in transverse bending, moisture volume changes, and thermal volume changes. These tests were not intended to provide results that would tell when cracking would occur and when it would not. The objective was to compare the results of tests obtained for block-type, eoncrete made with various aggregates and cured in different ways, and to tlcterminc relative immunity to cracking.
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