Thermodynamic Theory of Deformations of Concrete With Explanation of Drying Creep

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Title: Thermodynamic Theory of Deformations of Concrete With Explanation of Drying Creep

Author(s): Zdenek P. Bazant

Publication: Special Publication

Volume: 27

Issue:

Appears on pages(s): 411-421

Keywords: adsorption; age; cement pastes; computer programs; concretes; creep properties; cylinders; deformation; diffusion; humidity; mathematical models; microstructure; moisture content; nuclear reactors; plain concrete; pressure vessels; prestressed concrete

Date: 1/1/1971

Abstract:
Creep, shrinkage and delayed thermal dilatation of concrete at low stress are caused by mass transport of water and other molecules along thin layers in the microstructures. The theory of the consitutive equation based on this mechanism is summarized and, as an example, a plausible explanation of the phenomenon of drying creep is presented.