EP3075716A1 - GYPSUM SLURRY, HARDENED GYPSUM BODY, GYPSUM-BASED BUILDING MATERIAL, GYPSUM BOARD, PROCESS FOR MANUFACTURING GYPSUM SLURRY, PROCESS FOR MANUFACTURING HARDENED GYPSUM BODY, PROCESS FOR MANUFACTURING GYPSUM-BASED BUILDING MATERIAL, AND PROCESS FOR MANUFACTURING GYPSUM BOARD