GYPSUM COMPOSITION FOR FORMING FLOOR POST

摘要

PURPOSE: To obtain a gypsum composition for forming a long floor post with the amt. of kneading water reduced, with the drying time shortened and having a long working life. CONSTITUTION: This gypsum composition for forming a floor post contains 20-80vol.% foamed synthetic resin granular material based on 100vol.% calcined gypsum consisting of 10-40wt.%α-hemihydrate gypsum and 90-60wt.%β- hemihydrate gypsum.