The compounding principle, methods and properties of concrete pumpingadmixture had been studied.
对混凝土泵送剂配制原理、方法及其性能进行了研究。
2
An excellent pumpingadmixture was made up by use of FDN compounded with calcium lignosulphonate, retarder for controlling slump loss and water retaining admixture for reducing water segregation rate.