以陶粒代替石子作為混凝土的骨料,這樣的混凝土稱為“陶粒混凝土”。
以(yi)(yi)粘(zhan)土(tu)(tu)、亞粘(zhan)土(tu)(tu)等為主(zhu)原料(liao)(liao),經加工(gong)制粒、燒(shao)脹而(er)成的(de),其(qi)粒徑(jing)在5mm以(yi)(yi)上的(de)輕(qing)粗骨(gu)(gu)料(liao)(liao)稱為粘(zhan)土(tu)(tu)陶(tao)粒;粒徑(jing)小于(yu)5mm的(de)輕(qing)細骨(gu)(gu)料(liao)(liao)稱為粘(zhan)土(tu)(tu)陶(tao)砂。粘(zhan)土(tu)(tu)陶(tao)粒和(he)陶(tao)砂適用(yong)于(yu)保溫用(yong)的(de)、結構(gou)(gou)保溫用(yong)的(de)輕(qing)骨(gu)(gu)料(liao)(liao)混(hun)(hun)(hun)凝(ning)土(tu)(tu),也可用(yong)于(yu)結構(gou)(gou)用(yong)的(de)輕(qing)骨(gu)(gu)料(liao)(liao)混(hun)(hun)(hun)凝(ning)土(tu)(tu)。裝配式鋼混(hun)(hun)(hun)結構(gou)(gou)的(de)樓房外墻板,使用(yong)的(de)就是(shi)“陶(tao)粒混(hun)(hun)(hun)凝(ning)土(tu)(tu)”。
陶粒(li)(li)混(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)又稱為(wei)(wei)輕(qing)(qing)(qing)骨(gu)料(liao)(liao)混(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu),它是由膠凝(ning)(ning)(ning)(ning)材料(liao)(liao)和輕(qing)(qing)(qing)骨(gu)料(liao)(liao)配制而(er)成的(de)(de),容重(zhong)不(bu)(bu)大于1900kg/m3。可分(fen)為(wei)(wei)全輕(qing)(qing)(qing)混(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(用輕(qing)(qing)(qing)砂(sha))與砂(sha)輕(qing)(qing)(qing)混(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)(用普(pu)通(tong)砂(sha))。按用途可分(fen)為(wei)(wei)保(bao)溫用的(de)(de):密度(du)(du)為(wei)(wei)800kg/m3以(yi)下;結(jie)構保(bao)溫用的(de)(de):密度(du)(du)為(wei)(wei)800~1400kg/m3;結(jie)構用的(de)(de):密度(du)(du)為(wei)(wei)1400kg/m3以(yi)上。輕(qing)(qing)(qing)骨(gu)料(liao)(liao)混(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)的(de)(de)耐(nai)熱、防火性(xing)(xing)能(neng)較普(pu)通(tong)混(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)的(de)(de)好,但(dan)彈(dan)性(xing)(xing)模量則較低(di)。以(yi)陶粒(li)(li)為(wei)(wei)粗骨(gu)料(liao)(liao),以(yi)普(pu)通(tong)砂(sha)或陶砂(sha)為(wei)(wei)細骨(gu)料(liao)(liao)的(de)(de)輕(qing)(qing)(qing)骨(gu)料(liao)(liao)混(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)稱為(wei)(wei)陶粒(li)(li)混(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)。結(jie)構用陶粒(li)(li)混(hun)凝(ning)(ning)(ning)(ning)土(tu)(tu)的(de)(de)強度(du)(du)可大于40MPa,保(bao)溫及(ji)耐(nai)熱性(xing)(xing)能(neng)較好。可用于房(fang)屋建(jian)筑、橋(qiao)梁、船及(ji)窯爐基礎等。采用陶粒(li)(li)砌塊作墻體材料(liao)(liao),能(neng)降(jiang)低(di)工人的(de)(de)勞動(dong)強度(du)(du),省工省料(liao)(liao),且粉刷(shua)不(bu)(bu)空鼓,不(bu)(bu)易產生裂縫。隔音、隔熱性(xing)(xing)能(neng)優良,裝飾(shi)方便(bian),可直(zhi)接在(zai)墻體打(da)釘或膨(peng)脹螺(luo)絲(si),不(bu)(bu)下木砧等,且牢固度(du)(du)高。是節(jie)能(neng)建(jian)筑理想(xiang)的(de)(de)自保(bao)溫節(jie)能(neng)墻材,能(neng)為(wei)(wei)建(jian)設單位創造明顯的(de)(de)經濟(ji)效益(yi)和社會效益(yi)。