建筑(zhu)石(shi)膏簡介

建(jian)(jian)筑石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)，是(shi)二(er)(er)水(shui)(shui)石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)在一定溫(wen)度下(xia)加熱(re)脫水(shui)(shui)，并磨細制成的(de)(de)以β-半水(shui)(shui)石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)為(wei)主要組成的(de)(de)氣硬性膠凝材料。廣泛應用于各類石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)板、石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)砌塊(kuai)粉(fen)刷石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)、模型石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)等(deng)石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)制品(pin)。生產(chan)β型半水(shui)(shui)石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)的(de)(de)原料主要為(wei)含硫酸鈣(gai)的(de)(de)天然石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)（又稱生石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)）或含硫酸鈣(gai)的(de)(de)化工副產(chan)品(pin)和磷石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)、氟(fu)石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)等(deng)廢渣(zha)，其化學式為(wei)CaSO4.2H2O，也(ye)稱二(er)(er)水(shui)(shui)石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)。將(jiang)二(er)(er)水(shui)(shui)石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)在不(bu)同的(de)(de)溫(wen)度下(xia)煅燒(shao)可(ke)得到(dao)不(bu)同的(de)(de)石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)品(pin)種。如將(jiang)二(er)(er)水(shui)(shui)石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)在107~170℃的(de)(de)干燥條件下(xia)加熱(re)可(ke)得建(jian)(jian)筑石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)。