Abstract
Effects of the stress-strength ratio, loaded age, and temperature in curing and loading on the tensile creep in early age concrete have been investigated in this study. The effect of the stress strength ratio was significant and its relationship with creep strain could be described by an exponential equation. The loaded age influenced only the results of loading at 1day, but little effect was observed in other loaded ages. Although the effect of curing temperature and loading period could be assessed by equivalent periods of hydration, temperature effect during loading was much significant. Since activation energy was calculated 83.7k/mol, modified equivalent periods of hydration based on the value as demonstrated was compared with experimental results. The creep model with Voigt rehological elements was presented and demonstrated to predict creep strain on varied loading pattern and temperature change.
