建筑(zhu)石膏簡介

建筑石(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)，是(shi)二水(shui)石(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)在一定溫度下加熱脫水(shui)，并(bing)磨細制成(cheng)(cheng)的(de)以β-半水(shui)石(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)為主要組(zu)成(cheng)(cheng)的(de)氣硬(ying)性膠凝材料(liao)(liao)。廣泛(fan)應用于各類(lei)石(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)板、石(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)砌塊粉(fen)刷(shua)石(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)、模(mo)型(xing)石(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)等(deng)石(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)制品。生產β型(xing)半水(shui)石(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)的(de)原(yuan)料(liao)(liao)主要為含(han)(han)硫酸鈣(gai)的(de)天然石(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)（又(you)稱(cheng)生石(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)）或含(han)(han)硫酸鈣(gai)的(de)化工副產品和磷石(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)、氟石(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)等(deng)廢渣，其化學(xue)式(shi)為CaSO4.2H2O，也稱(cheng)二水(shui)石(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)。將二水(shui)石(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)在不同的(de)溫度下煅燒可(ke)得到不同的(de)石(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)品種。如將二水(shui)石(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)在107~170℃的(de)干燥條(tiao)件下加熱可(ke)得建筑石(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)。