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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: Thermal Incompatibility of Concrete Components and Thermal Properties of Carbonate Rocks
Author(s): Srdjan D. Venecanin
Publication: Materials Journal
Appears on pages(s): 602-607
Keywords: bridges (structures); carbonate aggregates; compressive strength; concrete durability; concretes; cracking (fracturing); deterioration; environments; limestone; temperature; thermal expansion; thermal properties; thermal stresses; Materials Research
Abstract:When concrete is exposed to temperature changes, unequal volume changes of concrete components cause cracking and reduction of durability. This phenomenon is often called thermal incompatibility of concrete components (TICC). It occurs when an aggregate with low thermal coefficient of thermal expansion (CTE) is used--and carbonate rocks often have low CTE. Carbonate rocks are often thermally nonhomogeneous, so usual methods of determining CTE are often unsuitable, since a great number of specimens must be used to obtain a dependable average value of CTE. A new method to measure CTE of nonhomogeneous rocks is proposed, which simultaneously gives results on thermal anisotropy of specimens, nonlinear relationship of strain and temperature, and residual strains after cyclic temperature changes, all of which are important in terms of TICC.
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