superplasticizer--polyurethane low water/cement ratio low dosage of 1% high slump flowable concrete superplasticizer--polyurethane1.Description:It is a high efficient concrete admixture. The raw material is polyurethane. It has all the traditional characteristics of concrete admixture,high water reducing effect, non-air-entrained, low Cl ion content,nontoxic, inflammable and good compatibility ...