大体积混凝土温度裂缝控制

Temperature Crack Control for Mass Concrete

大体积混凝土表面系数小,水泥水化热释放集中,因此容易造成温度裂缝。水泥水化热、外界气温变化、混凝土收缩均会造成裂缝,从原材料选用、施工过程控制、温度控制等方面介绍了裂缝控制措施,施工质量得到很好的保证。

Because of small apparent coefficient and centralized hydration heat of cement,temperature cracks is easy to form for mass concrete.It is pointed out that hydration heat of cement,temperature change outside and shrinkage of concrete can induce cracks.From the aspects of choose of original material,construction control and temperature control,cracks control measures are introduced and good quality has been gained.