浅谈大体积钢筋砼基础裂缝成因及其控制

Producing Crack Cause and Controlling Method of Big Volume Reinforced Concrete Base

大体积钢筋砼基础裂缝主要有表面温度裂缝和垂直收缩裂缝。为了预防裂缝的产生 ,应合理选择原料 ,施工时应控制砼的出机和浇注温度 ,合理选择砼浇注方案 ,改善约束条件 ,注重砼的养护和温控等。

The crack of big volume reinforced concrete base mainly consistes of surface temperature crack and vertical shrinkage crack.For preventing crack production,it is needful to reasonably select raw material,reasonably control the time of out of concrete from mixer and pouring temperature of concrete,reasonably select pouring plan of concrete,pay attention to maintenance and temperature conditions of concrete,etc.