Rheological properties of early Age concrete in tension

摘要

Results of original investigations on creep and relaxation are presented in the paper. Empirically determined values of rheological coefficients of creep and re- laxation functions of concrete loaded at The age of 12 to 72 hours that specify the initial period of the so-called "rapid creep period" are much higher than those calculated according to Code recommendations. Importance of the influence of rhe- ological phenomena on the effort of early age concrete was confirmed in kinematic tension tests.