WATER REDUCING AGENT FOR CEMENT COMPOSITION AND CEMENT COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide a water reducing agent for a cement composition which exhibits excellent water reducing effect when used for the cement composition having low water-powder ratio of≤35%. SOLUTION: The cement composition contains a (meth)acrylic acid-based graft polymer and a soluble calcium salt. The soluble calcium salt is suitably a specific component. COPYRIGHT: (C)2009,JPO&INPIT