建筑石膏簡介

建(jian)筑石(shi)(shi)(shi)膏(gao)，是二(er)水(shui)(shui)(shui)(shui)石(shi)(shi)(shi)膏(gao)在一定(ding)溫度(du)(du)下加熱(re)脫水(shui)(shui)(shui)(shui)，并磨細制成的(de)以β-半(ban)水(shui)(shui)(shui)(shui)石(shi)(shi)(shi)膏(gao)為(wei)主要組成的(de)氣硬性(xing)膠凝材料。廣泛(fan)應(ying)用于各類(lei)石(shi)(shi)(shi)膏(gao)板、石(shi)(shi)(shi)膏(gao)砌塊粉刷石(shi)(shi)(shi)膏(gao)、模型石(shi)(shi)(shi)膏(gao)等石(shi)(shi)(shi)膏(gao)制品(pin)。生產β型半(ban)水(shui)(shui)(shui)(shui)石(shi)(shi)(shi)膏(gao)的(de)原料主要為(wei)含硫酸(suan)鈣(gai)的(de)天(tian)然(ran)石(shi)(shi)(shi)膏(gao)（又稱生石(shi)(shi)(shi)膏(gao)）或含硫酸(suan)鈣(gai)的(de)化工副產品(pin)和磷石(shi)(shi)(shi)膏(gao)、氟(fu)石(shi)(shi)(shi)膏(gao)等廢渣，其化學式(shi)為(wei)CaSO4.2H2O，也稱二(er)水(shui)(shui)(shui)(shui)石(shi)(shi)(shi)膏(gao)。將二(er)水(shui)(shui)(shui)(shui)石(shi)(shi)(shi)膏(gao)在不同的(de)溫度(du)(du)下煅燒可(ke)得(de)到不同的(de)石(shi)(shi)(shi)膏(gao)品(pin)種。如將二(er)水(shui)(shui)(shui)(shui)石(shi)(shi)(shi)膏(gao)在107~170℃的(de)干燥條件下加熱(re)可(ke)得(de)建(jian)筑石(shi)(shi)(shi)膏(gao)。