建筑(zhu)石膏简介(jie)

建(jian)筑石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)，是(shi)二(er)水石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)在一定温(wen)度(du)下加热脱水，并磨细制(zhi)成的以β-半水石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)为(wei)主要(yao)组成的气硬性(xing)胶凝(ning)材料。广泛(fan)应(ying)用于各类石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)板(ban)、石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)砌块粉刷石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)、模(mo)型石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)等石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)制(zhi)品(pin)(pin)。生产β型半水石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)的原料主要(yao)为(wei)含硫酸钙的天然石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)（又(you)称(cheng)生石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)）或含硫酸钙的化工副(fu)产品(pin)(pin)和磷(lin)石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)、氟石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)等废(fei)渣，其化学式为(wei)CaSO4.2H2O，也称(cheng)二(er)水石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)。将二(er)水石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)在不(bu)同(tong)的温(wen)度(du)下煅烧可得到不(bu)同(tong)的石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)品(pin)(pin)种。如将二(er)水石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)在107~170℃的干燥条件下加热可得建(jian)筑石(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)(gao)(gao)。