生(sheng)產(chan)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)的(de)(de)原料主(zhu)要為含(han)硫(liu)酸(suan)鈣(gai)的(de)(de)天然石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)（又稱(cheng)(cheng)生(sheng)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)）或含(han)硫(liu)酸(suan)鈣(gai)的(de)(de)化工副產(chan)品(pin)和磷石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)、氟石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)、硼石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)等廢(fei)渣，其化學式(shi)為CaSO4.1/2H2O，也稱(cheng)(cheng)半水(shui)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)。將天然二(er)水(shui)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)在(zai)不(bu)同的(de)(de)溫度下煅燒可得到不(bu)同的(de)(de)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)品(pin)種。如將天然二(er)水(shui)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)在(zai)107~170℃的(de)(de)干燥條件(jian)下加熱可得建筑(zhu)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)膏(gao)。

將建筑石(shi)(shi)膏(gao)加(jia)水(shui)(shui)(shui)(shui)后，它(ta)首(shou)先溶解于水(shui)(shui)(shui)(shui)，然后生(sheng)(sheng)(sheng)成二(er)水(shui)(shui)(shui)(shui)石(shi)(shi)膏(gao)析出。隨著(zhu)水(shui)(shui)(shui)(shui)化(hua)的(de)(de)(de)(de)不(bu)(bu)斷進(jin)行(xing)，生(sheng)(sheng)(sheng)成的(de)(de)(de)(de)二(er)水(shui)(shui)(shui)(shui)石(shi)(shi)膏(gao)膠體(ti)(ti)(ti)微粒不(bu)(bu)斷增(zeng)(zeng)多，這些微粒比(bi)原先更加(jia)細(xi)小，比(bi)表面積(ji)很大(da)，吸附著(zhu)很多的(de)(de)(de)(de)水(shui)(shui)(shui)(shui)分；同(tong)時漿(jiang)體(ti)(ti)(ti)中的(de)(de)(de)(de)自由(you)水(shui)(shui)(shui)(shui)分由(you)于水(shui)(shui)(shui)(shui)化(hua)和蒸發而不(bu)(bu)斷減少，漿(jiang)體(ti)(ti)(ti)的(de)(de)(de)(de)稠度不(bu)(bu)斷增(zeng)(zeng)加(jia)，膠體(ti)(ti)(ti)微粒間(jian)的(de)(de)(de)(de)黏結(jie)逐(zhu)步增(zeng)(zeng)強，顆粒間(jian)產(chan)生(sheng)(sheng)(sheng)摩擦(ca)力和黏結(jie)力，使漿(jiang)體(ti)(ti)(ti)逐(zhu)漸失去(qu)可塑性(xing)(xing)，即漿(jiang)體(ti)(ti)(ti)逐(zhu)漸產(chan)生(sheng)(sheng)(sheng)凝結(jie)。繼續(xu)水(shui)(shui)(shui)(shui)化(hua)，膠體(ti)(ti)(ti)轉變成晶(jing)體(ti)(ti)(ti)。晶(jing)體(ti)(ti)(ti)顆粒逐(zhu)漸長大(da)，使漿(jiang)體(ti)(ti)(ti)完全(quan)失去(qu)可塑性(xing)(xing)，產(chan)生(sheng)(sheng)(sheng)強度，即漿(jiang)體(ti)(ti)(ti)產(chan)生(sheng)(sheng)(sheng)了硬(ying)化(hua)。這一過程(cheng)不(bu)(bu)斷進(jin)行(xing)，直至漿(jiang)體(ti)(ti)(ti)完全(quan)干燥，強度不(bu)(bu)在增(zeng)(zeng)加(jia)，此時漿(jiang)體(ti)(ti)(ti)已硬(ying)化(hua)成人造石(shi)(shi)材。

海南石膏粉批發是(shi)(shi)以建筑石(shi)(shi)膏為主要(yao)原材(cai)料，經加水攪拌、澆注成(cheng)型(xing)和(he)干燥制成(cheng)的輕質(zhi)建筑石(shi)(shi)膏制品。生產中(zhong)允許加入纖維增強材(cai)料或(huo)輕集料，也可(ke)加入發泡(pao)劑。石(shi)(shi)膏砌塊具有隔聲防火(huo)、施工便捷(jie)等多項優(you)點，是(shi)(shi)一(yi)種低碳環保、健康、符合(he)時代發展要(yao)求的新型(xing)墻體材(cai)料。