CEMENT ADMIXTURE, CEMENT COMPOSITION AND HARDENED PRODUCT USING THE SAME

摘要

PROBLEM TO BE SOLVED: To obtain a cement admixture and a cement composition having good shape-retaining properties, god in adhesiveness of a cement-water mixture and causing no separation of materials and a cement-cured product using the cement admixture. SOLUTION: The cement admixture contains a water-soluble high molecular material having 5-30 alkyls, 5-30C cycloalkyls or 6-30C aryls and acid amides and a cellulose derivative. Using the cement-cured product is obtained by using the cement admixture.