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根据寒区施工的特点，研究了－１０℃的Ｃ５０级负温泵送高强砼的配比，并在工程中进行应用，同时确定Ｃ５０级高强负温泵送砼冬季负温施工限
According to the characteristics of cold area construction, the ratio of C50-level high temperature concrete pump pumped at -10 ℃ was studied and applied in the project. Meanwhile, the construction temperature limit of C50-level high-strength negative temperature pumping concrete in winter