【摘要】 对混凝土泵送剂配制原理、方法及其性能进行了研究。ＦＤＮ与木钙复合，以缓凝剂控制坍落度经时损失，以保水剂降低混凝土泌水率，配制出混凝土坍落度经时损失较小、性能优良的多元复合泵送剂。更多还原

【Abstract】 The compounding principle,methods and properties of concrete pumping admixture had been studied.An excellent pumping admixture was made up by use of FDN compounded with calcium ligno sulphonate,retarder for controlling slump loss and water retaining admixture for reducing water segregation rate.更多还原