Title: A Study of Stress Relaxation in Prestressing Reinforcement
Date: April, 1964
Volume: 9
Issue: 2
Page number: 13-57
Author(s): Donald D. Magura, Mete A. Sozen, Chester P. Siess
https://doi.org/10.15554/pcij.04011964.13.57

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Abstract

The object of this paper is to present and evaluate the results of available relaxation tests with a view to the development of expressions for estimating the effects of stress relaxation. Appendix A presents detailed description of 57 tests carried out at the University of Illinois. Appendix B summarizes the results of 444 tests carried out in the course of 17 investigations at different laboratories. The data from  all 501 tests are discussed in the paper which includes a bibliography on stress relaxation.