建筑石膏簡(jian)介

建筑石(shi)(shi)(shi)(shi)(shi)膏(gao)，是二(er)水(shui)石(shi)(shi)(shi)(shi)(shi)膏(gao)在(zai)一定溫度(du)(du)下加(jia)熱(re)脫水(shui)，并(bing)磨細制成的(de)(de)以β-半水(shui)石(shi)(shi)(shi)(shi)(shi)膏(gao)為(wei)主要組成的(de)(de)氣硬(ying)性膠凝材(cai)料(liao)。廣泛應用(yong)于(yu)各類石(shi)(shi)(shi)(shi)(shi)膏(gao)板、石(shi)(shi)(shi)(shi)(shi)膏(gao)砌塊粉刷石(shi)(shi)(shi)(shi)(shi)膏(gao)、模型(xing)石(shi)(shi)(shi)(shi)(shi)膏(gao)等(deng)石(shi)(shi)(shi)(shi)(shi)膏(gao)制品。生產β型(xing)半水(shui)石(shi)(shi)(shi)(shi)(shi)膏(gao)的(de)(de)原(yuan)料(liao)主要為(wei)含(han)硫酸鈣的(de)(de)天然石(shi)(shi)(shi)(shi)(shi)膏(gao)（又稱(cheng)生石(shi)(shi)(shi)(shi)(shi)膏(gao)）或含(han)硫酸鈣的(de)(de)化工(gong)副產品和磷石(shi)(shi)(shi)(shi)(shi)膏(gao)、氟(fu)石(shi)(shi)(shi)(shi)(shi)膏(gao)等(deng)廢渣，其化學式為(wei)CaSO4.2H2O，也稱(cheng)二(er)水(shui)石(shi)(shi)(shi)(shi)(shi)膏(gao)。將(jiang)二(er)水(shui)石(shi)(shi)(shi)(shi)(shi)膏(gao)在(zai)不同的(de)(de)溫度(du)(du)下煅(duan)燒(shao)可(ke)得到不同的(de)(de)石(shi)(shi)(shi)(shi)(shi)膏(gao)品種。如將(jiang)二(er)水(shui)石(shi)(shi)(shi)(shi)(shi)膏(gao)在(zai)107~170℃的(de)(de)干燥條件下加(jia)熱(re)可(ke)得建筑石(shi)(shi)(shi)(shi)(shi)膏(gao)。