Hydraulic cement compositions and additives therefor

摘要

An additive consisting of (poly)ethyleneglycol monocycloalkylether of a specified kind, (poly)alkyleneglycol or (poly)alkyleneglycol monoalkylether of another specified kinds, an organic phosphoric acid ester of still another specified kind and an antifoaming agent in a specified ratio, when used at a specified ratio, can provide hydraulic cement compositions with reduced bleeding of water after the placing and reduced dry shrinkage of hardened objects.