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

作　　者：庄丽辉 佟胜宝 孙玉良[1] 钱丽华[1] 谢玉环[1] 刘刚[2] 徐有邻[2] 

机构地区：[1]唐山市建设工程质量监督站,河北唐山063000 [2]中国建筑科学研究院,北京110013

出　　处：《混凝土》2007年第10期4-6,11,共4页Concrete

摘　　要：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.

关 键 词：冬期施工 同条件养护强度 折算成熟度 

分 类 号：TU528.01[建筑科学—建筑技术科学]