建筑(zhu)石膏(gao)简介(jie)

建筑石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)，是二(er)水(shui)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)在一定温度(du)下(xia)加热(re)脱水(shui)，并磨细制成的(de)(de)(de)以β-半(ban)水(shui)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)为主要(yao)组成的(de)(de)(de)气硬性胶凝材料。广泛应(ying)用于(yu)各(ge)类石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)板、石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)砌(qi)块粉刷石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)、模(mo)型(xing)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)等(deng)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)制品(pin)。生(sheng)产β型(xing)半(ban)水(shui)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)的(de)(de)(de)原料主要(yao)为含硫(liu)酸钙的(de)(de)(de)天然石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)（又称生(sheng)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)）或含硫(liu)酸钙的(de)(de)(de)化(hua)工副产品(pin)和(he)磷石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)、氟(fu)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)等(deng)废渣，其化(hua)学式为CaSO4.2H2O，也称二(er)水(shui)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)。将(jiang)二(er)水(shui)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)在不同的(de)(de)(de)温度(du)下(xia)煅烧可得(de)(de)到不同的(de)(de)(de)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)品(pin)种。如(ru)将(jiang)二(er)水(shui)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)在107~170℃的(de)(de)(de)干燥条(tiao)件下(xia)加热(re)可得(de)(de)建筑石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)(gao)(gao)。