EXPERIMENTAL STUDY ON CREEP BEHAVIOR OF HIGH-STRENGTH CONCRETE IN EARLY AGE

Abstract

The experiment on creep behavior of high-strength concrete in early age was carried out in this study. The creep behavior in early age was evaluated by Burgers model, which rheological elements ware changed by time. The following results were clarified: 1)The ratio of tensile creep to compressive creep was about 65-90% in drying condition and sealed condition. 2)The ratio of sealed condition to drying condition was about 1.1-1.6 in tensile creep and compressive creep. 3) The creep behavior in early age was estimated by Burgers model which rheological elements ware changed by time.