The invention relates to a polycarboxylate composite water reducing agent suitable for low-cementitiousmaterial concrete and a preparation method thereof.
本发明涉及一种聚羧酸复合减水剂及其制备方法,适用于低胶凝材料混凝土。
3
The grouting material is made by special craft with selected cementitious materials, fine aggregate, admixture, additive and it's a kind of high strength cementitiousmaterial.