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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: Creep of Concrete under Various Temperature, Moisture, and Loading Conditions
Author(s): J.E. McDonald
Publication: Special Publication
Appears on pages(s): 31-54
Keywords: creep properties; creep recovery; creep tests; curing;
deformation; loads (forces); modulus of elasticity; moisture content;
nuclear reactors; Poisson ratio; pressure vessels; prestressed con-crete;
shrinkage; strains; stresses; temperature
Abstract:An investigation was conducted to develop information on the time-dependent deformation behavior of concrete in the presence of temperature, moisture, and loading conditions similar to those en-' countered in a prestressed concrete reactor vessel (PCRV). Variables were one concrete strength (6000 psi (41 MPa) at 28 days), three 7 aggregate types (chert, limestone, and graywacke), one cement (Type II), two types of specimens (as-cast and air-dried), two levels of tempera-!, ture during test 73 F and 150 F (23 C and 66 C), and four types of "1, loading (uniaxial, hydrostatic, biaxial, and triaxial). There were 66 test conditions for creep tests and 12 test conditions for unloaded or control specimens. Experimental results are presented and discussed. Comparisons are made concerning the effect of the various test conditions on the behavior of concrete and general conclusions are formulated. Research performed under Int eragency Agreement No. AT-(40-1)-4128 for the Oak Ridge National Laborat ory operated by Un ion Carbide Corporation under contract with the Energy' Research and Deve lopment Administration.
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