Title: Thermodynamic Theory of Deformations of Concrete With Explanation of Drying Creep
Author(s): Zdenek P. Bazant
Publication: Symposium Paper
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
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.