-20℃ 下 C60 高强混凝土的泵送施工

Pumping Construction of GradeC60 HighStrength Concrete at -20℃

在－２０℃气温下进行的哈尔滨航天大厦施工中，掺加４％的由减水、防冻、早强、引气、活性、增粘等组分复合而成的ＦＤＪ－２高效高强防冻泵送剂，采取综合蓄热养护法，成功地进行了Ｃ６０高强混凝土泵送施工。

Blended 'FDJ-2'antifreezing pumping compound with waterreducing,antifreezing,accelerating,airentraining,pozzolanic and viscosifying components were successfully used at 20℃ in the pumping construction and complex heatretaining curing of Grade C60 highstrength concrete in Aerospace Building,Heaerbin.