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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: Prediction and Control of Stresses in Concrete
Author(s): Frederick 0. Ruud
Publication: Journal Proceedings
Appears on pages(s): 95-104
Keywords: analysis, block, concrete, control, cooling, cracking, dam, prediction, stress, tensile strength, thermal gradient, thermal stress
Abstract:Development of criteria for the prediction of thermal stresses in concrete dam construction block during cooling operations prior to grouting is outlined. A new concept is presented concerning the tensile stress within a block which includes the ratio of the height of the temperature transition zone to the base length of the block being cooled. It is shown that high temperature gradients in a concrete block will lead to excessive tensile stresses resulting in cracking of the block. Control of the maximum stress may be achieved through cooling operations leading to acceptable temperature gradients. Several curves are given for prediction of maximum tensile stress as a function of base length, height of temperature transition zone, temperature change, and properties of the concrete.
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