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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 Mass Concrete at High Temperature
Author(s): K. W. Nasser and R. P. Lohtia
Publication: Journal Proceedings
Appears on pages(s): 276-281
Keywords: compressive strength; concretes; creep properties; creep rate; creep
recovery; curing; high temperature; mass concrete; pressure vessels; research; stress-strength ratio; temperature,
Abstract:Test results of creep and creep recovery of mass concrete, which were tested at seven different temperatures 35 to 450 F ( I .7 to 232 C) and under three stress levels ( 1000 to 3000 psi) (70.3 to 2 IO.9 kgf/cm2) are presented. Creep in general increased with temperature in some inconsistent way. The rate of creep after 21 days of loading increased with temperature to about 160 F (71 C) but decreased with a further rise in temperature up to 450 F (232 C). Creep strains varied linearly with stress strength ratios of 20 to 70 percent. Creep recovery was independent of temperature but not of stress. The creep mechanism is discussed in some detail.
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