ADMIXTURE FOR EXTRUSION MOLDING OF CEMENT, AND USE THEREOF

摘要

PROBLEM TO BE SOLVED: To provide an admixture for extrusion molding of cement, used for extrusion molding of cement and capable of solving both problems of extrudability and quality of an extrusion molding of cement in a case of manufacturing the extrusion molding of cement.SOLUTION: An admixture for extrusion molding of cement contains a cellulose-based binder and an anionic surfactant and is an admixture used for an extrusion molding of cement. The cellulose-based binder contains at least one specific kind and a viscosity of 1 wt% solution is 6,000 to 30,000 mPa s. The anionic surfactant contains at least one kind selected from a group consisting of sodium alkyl sulfate, sodium α-olefin sulfonate and sodium alkylbenzene sulfonate. A content ratio of the cellulose-based binder to anionic surfactant is 99.8:0.2 to 97.0:3.0.