purpose of gypsum in cement before grinding
Why do we add gypsum in cement Quora. Feb 28 2018 #183; Gypsum a soft white or grey mineral consisting of hydrated calcium sulphate. It occurs chiefly in sedimentary deposits and is used to make plaster of Paris and fertilizers and in the building industry. It is a mineral and is hydrated calcium sulf. Inquiry More; role gypsum in cement