建筑石膏簡(jian)介

建筑石(shi)(shi)(shi)膏，是二水(shui)(shui)(shui)石(shi)(shi)(shi)膏在一定溫(wen)度下(xia)加熱脫水(shui)(shui)(shui)，并磨細(xi)制成的(de)(de)(de)以(yi)β-半(ban)水(shui)(shui)(shui)石(shi)(shi)(shi)膏為(wei)主要組成的(de)(de)(de)氣(qi)硬性膠凝材料。廣泛應用于各(ge)類石(shi)(shi)(shi)膏板、石(shi)(shi)(shi)膏砌塊粉刷石(shi)(shi)(shi)膏、模型石(shi)(shi)(shi)膏等(deng)石(shi)(shi)(shi)膏制品。生產β型半(ban)水(shui)(shui)(shui)石(shi)(shi)(shi)膏的(de)(de)(de)原(yuan)料主要為(wei)含(han)硫酸鈣的(de)(de)(de)天然石(shi)(shi)(shi)膏（又稱(cheng)生石(shi)(shi)(shi)膏）或含(han)硫酸鈣的(de)(de)(de)化(hua)工副產品和磷石(shi)(shi)(shi)膏、氟石(shi)(shi)(shi)膏等(deng)廢渣(zha)，其化(hua)學(xue)式為(wei)CaSO4.2H2O，也稱(cheng)二水(shui)(shui)(shui)石(shi)(shi)(shi)膏。將(jiang)二水(shui)(shui)(shui)石(shi)(shi)(shi)膏在不(bu)同(tong)的(de)(de)(de)溫(wen)度下(xia)煅燒可得到(dao)不(bu)同(tong)的(de)(de)(de)石(shi)(shi)(shi)膏品種(zhong)。如將(jiang)二水(shui)(shui)(shui)石(shi)(shi)(shi)膏在107~170℃的(de)(de)(de)干(gan)燥(zao)條件下(xia)加熱可得建筑石(shi)(shi)(shi)膏。