
28 may 2010 , gypsum board, also known as wallboard, or drywall, is a common , crushing natural and/or synthetic gypsum, drying it, and grinding it into a fine powder , the calcined gypsum is then mixed with water, starches, and other.... grinding and calcining of gypsum with pfeiffer grinding plants , - know more,grinding process for gypsum,what is gypsum how gypsum is processed mc. use of gypsum. gypsum is a widely used industrial material and building material. gypsum (caso 4 2h 2 o) can be calcined and grinded to obtain -type hemihydrate gypsum (2caso 4 h 2 o), that is, building gypsum, also known as cooked gypsum or plaster.