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在分析负温下砼受冻害成因时，以冻结温度、时间、砼强度等级、水灰比、防冻剂的类型、抗冻临界强度等参数为变量，采用逐步Ｌｏｇｉｓｔｉｃ判别函数进行分析新拌砼从入模到具有相当的抗冻临界强度时的受冻害成因。结果表明，对新拌砼冻害影响关系最强的参数为防冻剂的类型、抗冻临界强度及水灰比，由此构成负温下砼受冻害成因，在砼工程防冻害减灾技术中宜从这三个参数入手。
When analyzing the causes of damage due to freezing in negative temperatures, parameters such as freezing temperature, time, helium intensity level, water-cement ratio, type of antifreeze, and critical freezing strength are used as variables, and stepwise Logistic discriminant functions are used to analyze new enthalpies. Into the mold to have a considerable degree of frost resistance when the critical frost resistance. The results show that the parameters that have the strongest influence on the freezing damage of fresh mix are the type of antifreeze, the critical strength against freezing, and the water-cement ratio, which constitutes the cause of freezing damage under negative temperature. The three parameters start.