申请人:W. R. Grace & Co.
公开号:US04554020A1
公开(公告)日:1985-11-19
Admixture compositions for hydraulic cement compositions are disclosed which comprise a borate ester of a polyhydroxy compound. The admixtures are effective water-reducing agents at relatively low dosages in hydraulic cements. They generally provide water reduction levels equal to or greater than those provided by the corresponding non-esterified polyhydroxy compound with a lesser degree of set retardation.
揭示了用于水泥混合物的混合物组合物,其中包括聚羟基化合物的硼酸酯。这些混合物在水泥中的剂量相对较低时是有效的减水剂。它们通常提供的减水水平等于或大于相应的非酯化聚羟基化合物提供的水平,并具有较小的减缓硬化程度。