寒冷地区冬季混凝土强度增长规律的试验研究  

Test Study on Concrete Strength Growing Rules in Winter at Cold Area

作　　者：赵芸平[1,2] 孙玉良[1,3] 于涛[2] 于嘉禾[2] 

机构地区：[1]河北理工大学,唐山063009 [2]唐山学院,唐山063020 [3]唐山市建设工程质量监督检测站,唐山063000

出　　处：《硅酸盐通报》2009年第4期854-858,共5页Bulletin of the Chinese Ceramic Society

摘　　要：通过对冬季混凝土试件强度的系统试验研究,得出了在寒冷地区冬季混凝土强度(标准养护、自然养护)随龄期的增长规律、冬季混凝土强度(标准养护、自然养护)随成熟度的增长规律。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。Through a systematic experimental study of the strength of the tested concrete blocks conducted in winter, such issues are settled concerning the aging-related growth pattern of concrete strength under both standard and natural maintenance in winter in cold areas, the growth pattern of concrete strength in winter in correspondence with maturity. A statistical analysis indicates that concrete strength increases slowly even below 0 ℃ in winter, which shows a somewhat uncertain relationship with the age of maintenance but is obviously corresponding to maturity. Maturity in winter season should be calculated in connection with the construction regulations for winter as well as the equivalent temperature coefficient, which is then used to set the age of equivalent maintenance.

关 键 词：冬期施工 同条件养护强度 折算成熟度 

分 类 号：TU528[建筑科学—建筑技术科学]