摘要
大体积混凝土的裂缝，主要是由施工阶段混凝土温度变形而引起的，尤其对一次性浇注厚层结构的大体积混凝土，减少温度变形更为重要．针对重庆大佛寺长江大桥在选用适当的水泥和配比以及施工方法的前提下成功地一次性浇注关键路线———４＃墩承台。
Deformation caused by temperature change at the stage of construction leads to the crack of huge volume concrete structure. Especially as far as thick and huge volume concrete structure casted continually is considered, reducing the deformation caused by temperature change is more important. For Chongqing Dafosi Changjiang Bridge,clue to that the suitable type of cement, proportion and construction measure were used, the key project——the foundation of 4# pier has been successfully casted.
出处
《重庆建筑大学学报》
CSCD
1999年第1期87-90,共4页
Journal of Chongqing Jianzhu University
关键词
大体积
混凝土
浇注
温差
裂缝
huge volume
concrete
casting continually
temperature change
crack
