大体积混凝土的施工温度与裂缝控制

Control of temperature and cracks in large bulk of concrete construction

裂缝在混凝土结构中普遍存在,它不仅会降低建筑物的抗渗能力、影响建筑物的使用功能,还会引起钢筋的锈蚀、混凝土的碳化,降低材料的耐久性,影响建筑物的承载能力,因此要认真研究混凝土裂缝,区别对待,采用合理的方法进行处理,并在施工中采取各种有效预防措施来预防裂缝的出现和发展,保证建筑物和构件安全、稳定地工作。

Concrete cracks may cause erosion of steel bars, concrete carbonization, lower durability, weight capability and antipermeability, which would exert bad influence on function of the concrete structures.So, research and measures were carried out to control construction temperature and the development of cracks.