BALL MILL |authorSTREAM
BALL MILL Cement is produced by grinding clinker and about 5 % of gypsum. Other materials such as fly ash, slag and pozzolan can be added well, to produce composite cements.: BALL MILL Cement is produced by grinding clinker and about 5 % of gypsum. Other materials such as fly ash, slag and pozzolan can be added well, to produce composite cements.