建筑(zhu)石膏简介

建筑石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)，是(shi)二(er)(er)水(shui)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)在一(yi)定温(wen)度下(xia)加(jia)热脱水(shui)，并磨细制成的(de)(de)以β-半(ban)水(shui)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)为主要(yao)组(zu)成的(de)(de)气硬性(xing)胶凝材料。广泛应用(yong)于各(ge)类石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)板、石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)砌块粉刷石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)、模型石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)等石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)制品。生产β型半(ban)水(shui)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)的(de)(de)原料主要(yao)为含硫酸(suan)钙(gai)的(de)(de)天然石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)（又称生石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)）或含硫酸(suan)钙(gai)的(de)(de)化(hua)工(gong)副(fu)产品和(he)磷石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)、氟(fu)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)等废渣，其化(hua)学式为CaSO4.2H2O，也称二(er)(er)水(shui)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)。将二(er)(er)水(shui)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)在不(bu)同的(de)(de)温(wen)度下(xia)煅烧可得到(dao)不(bu)同的(de)(de)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)品种(zhong)。如(ru)将二(er)(er)水(shui)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)在107~170℃的(de)(de)干燥(zao)条(tiao)件下(xia)加(jia)热可得建筑石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)。