冬期混凝土强度增长规律的试验研究

Test research of concrete strength growing rules in winter

通过对冬季混凝土试件强度的系统试验研究,探讨了在寒冷地区冬期低温条件下混凝土强度增长的规律。统计分析表明,冬期混凝土强度即使在0℃以下也有缓慢增长,增长与龄期的关系不确定性较大,但与成熟度呈明显的对应关系。冬期的成熟度应根据冬期施工规程考虑温度等效系数进行折算,并由折算成熟度累积确定等效养护龄期。

This test discussed the growing rules of concrete strength at cold area in winter based on a systemic test research of concrete samples in winter.According to the statistic results, the concrete strength grows slowing when the temperature is below the 0℃ .The rules of growing is uncertainty with the age ,but is corresponding with the maturity.The maturity could be converted by temperature-equivalent-coefficient in the corresponding code and the age could be calculated by the maturity.