如今,装配式钢筋混凝土结构接头的冬季施工,虽广泛地采用了在砂浆和混凝土中掺抗冻剂的不加热浇筑方法。但是,这种方法对在各种环境温度下正确地考虑这些接头的实际混凝土硬化条件还远远不够。掺抗冻剂的砂浆和混凝土的重要缺点是, Today, in the winter construction of prefabricated reinforced concrete structural joints, an unheated pouring method in which mortar and concrete are mixed with antifreeze is widely used. However, this approach is not enough to properly consider the actual concrete hardening conditions of these joints at various ambient temperatures. The important shortcoming of mortar and concrete with antifreeze is that