Title:
Creep and Shrinkage of Aging Concrete
Author(s):
KS. Pister, J.H. Argyris, and K.J. William
Publication:
Symposium Paper
Volume:
55
Issue:
Appears on pages(s):
1-30
Keywords:
age; concretes; creep properties; deformation; mass con-crete;
pressure vessels; shrinkage; strains; stresses; thermodynamics
DOI:
10.14359/6607
Date:
8/1/1978
Abstract:
A thermodynamically-based creep theory is developed, in which the strain at any time is composed of mechanical, thermal, hygral and autogenous contributions. Each of these contributions (except the autogenou consists of an instantaneous part which is reversible (in the working stress regime) and a time-dependent part which may in turn contain both reversible and irreversible components. The theory provides a unifying framework for examining existing methods of modeling creep phenomena and developing new models where experimental data reveal deficiencies in current models.