建筑石膏簡介(jie)

建筑石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)，是二(er)(er)水(shui)(shui)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)在(zai)(zai)一(yi)定(ding)溫度(du)下(xia)加熱(re)脫水(shui)(shui)，并磨(mo)細制成(cheng)的(de)以β-半水(shui)(shui)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)為(wei)主要組(zu)成(cheng)的(de)氣硬性膠凝(ning)材料。廣(guang)泛應用于(yu)各類(lei)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)板(ban)、石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)砌塊粉刷石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)、模型石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)等(deng)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)制品。生產(chan)β型半水(shui)(shui)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)的(de)原料主要為(wei)含硫酸鈣(gai)的(de)天(tian)然石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)（又(you)稱生石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)）或含硫酸鈣(gai)的(de)化工副產(chan)品和磷石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)、氟石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)等(deng)廢渣，其化學式為(wei)CaSO4.2H2O，也稱二(er)(er)水(shui)(shui)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)。將(jiang)二(er)(er)水(shui)(shui)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)在(zai)(zai)不(bu)同的(de)溫度(du)下(xia)煅燒(shao)可(ke)得到不(bu)同的(de)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)品種(zhong)。如將(jiang)二(er)(er)水(shui)(shui)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)在(zai)(zai)107~170℃的(de)干(gan)燥條件下(xia)加熱(re)可(ke)得建筑石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)。