Rheological properties of early Age concrete in tension

摘要

Results of original investigations on creep and relaxation arepresented in the paper. Empirically determined values of rheologicalcoefficients of creep and re- laxation functions of concrete loadedat The age of 12 to 72 hours that specify the initial period of theso-called "rapid creep period" are much higher than those calculatedaccording to Code recommendations. Importance of the influence ofrhe- ological phenomena on the effort of early age concrete wasconfirmed in kinematic tension tests.