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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 Poisson's Ratio of Concrete
Under Multiaxial Compression
Author(s): K. S. Gopalakrishnan, Adam M. Neville, and Amin Ghali
Publication: Journal Proceedings
Appears on pages(s): 1008-1019
Keywords: biaxial stresses; combined stress:compressive strength; concretes; creep properties;creep recovery; Poisson‘s ratio; strains; stresses;triaxial stresses.
Abstract:Creep data are presented for concrete under different states of stress, with each stress component independently controlled. Creep in all three principal directions is reported. Under multiaxial stress, cree is somewhat smaller than under uniaxial stress. Effective creep Poisson’s ratio under multiaxial stress is lower (0.09 to 0.17) than uniaxial creep Poisson’s ratio (0. I7 to 0.20) and depends on the relative magnitude of principal stresses. Empirical expressions for creep Poisson’s ratio are derived. Data on creep recovery show the dependence of creep recovery on preceding creep as well as on stress removed. Under multiaxial compression the recoverable proportion of creep is larger than under uniaxial stress.
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