NON-SEPARATING AGENT FOR ADMIXING CEMENT, ADMIXTURE AGENT FOR NONSHRINK MORTAR AND CONCRETE CONTAINING NON-SEPARATING AGENT, NONSHRINK MORTAR, AND CONCRETE

摘要

PROBLEM TO BE SOLVED: To obtain a non-separating agent for admixing cement which does not cause material separation and any hindrance on construction works, an admixture agent for a nonshrink mortar and concrete for obtaining a moltar and concrete free from an apparent volume shrinkage without causing material separation and any hindrance on construction works, and a nonshrink mortar and concrete without causing the material separation and the hindrance on the construction works without using fine powder especially.;SOLUTION: The non-separating agent for admixing cement contains a hydroxypropyl cellulose having a low substitution degree as an effective ingredient. The non-separating agent for admixing cement contains the hydroxypropyl cellulose having a substitution degree of ≤1.0.;COPYRIGHT: (C)2004,JPO