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A platform for research: civil engineering, architecture and urbanism
Composite heat-preservation light autoclaved aerated concrete and preparation method thereof
The invention discloses composite heat preservation light autoclaved aerated concrete. The invention discloses a preparation method of the composite thermal-insulation lightweight autoclaved aerated concrete. The preparation method comprises the following steps: mixing and ball-milling fluorite mine tailings, quartz sand, building solid waste and water to obtain mortar; adding lime, cement, composite sepiolite and aluminum powder into the mortar, uniformly stirring, pouring into a mold, pouring, and carrying out gas forming to form a green body; and demolding the green body, cutting, and steaming to obtain the composite heat-preservation light autoclaved aerated concrete. The composite sepiolite is prepared by the following process: feeding sepiolite powder into a sulfuric acid solution, stirring for 1-2 hours at 50-60 DEG C, filtering, washing to be neutral, drying, then adding sodium alginate, microcrystalline cellulose and water, fully and uniformly mixing, carrying out hydrothermalcarbonization for 2-4 hours at 160-180 DEG C, filtering, washing, drying and crushing to obtain the composite sepiolite. The autoclaved aerated concrete is low in density, low in heat conductivity coefficient and good in sound insulation and compressive strength.
本发明公开了一种复合保温轻质蒸压加气混凝土。本发明公开了上述复合保温轻质蒸压加气混凝土的制备方法，包括如下步骤：将萤石矿尾砂、石英砂、建筑固废、水混合球磨得到砂浆；向砂浆中加入石灰、水泥、复合海泡石、铝粉搅拌均匀，倒入模具中浇注，发气成型形成坯体；将坯体脱膜后切割，蒸得到复合保温轻质蒸压加气混凝土。复合海泡石采用如下工艺制备：将海泡石粉送入硫酸溶液中，50‑60℃搅拌1‑2h，过滤，洗涤呈中性，干燥，然后加入海藻酸钠、微晶纤维素、水充分混合均匀，160‑180℃水热碳化2‑4h，过滤，洗涤，干燥，粉碎得到复合海泡石。本发明所得蒸压加气混凝土密度低、导热系数低、隔音和抗压强度性能均良好。
Composite heat-preservation light autoclaved aerated concrete and preparation method thereof
The invention discloses composite heat preservation light autoclaved aerated concrete. The invention discloses a preparation method of the composite thermal-insulation lightweight autoclaved aerated concrete. The preparation method comprises the following steps: mixing and ball-milling fluorite mine tailings, quartz sand, building solid waste and water to obtain mortar; adding lime, cement, composite sepiolite and aluminum powder into the mortar, uniformly stirring, pouring into a mold, pouring, and carrying out gas forming to form a green body; and demolding the green body, cutting, and steaming to obtain the composite heat-preservation light autoclaved aerated concrete. The composite sepiolite is prepared by the following process: feeding sepiolite powder into a sulfuric acid solution, stirring for 1-2 hours at 50-60 DEG C, filtering, washing to be neutral, drying, then adding sodium alginate, microcrystalline cellulose and water, fully and uniformly mixing, carrying out hydrothermalcarbonization for 2-4 hours at 160-180 DEG C, filtering, washing, drying and crushing to obtain the composite sepiolite. The autoclaved aerated concrete is low in density, low in heat conductivity coefficient and good in sound insulation and compressive strength.
本发明公开了一种复合保温轻质蒸压加气混凝土。本发明公开了上述复合保温轻质蒸压加气混凝土的制备方法，包括如下步骤：将萤石矿尾砂、石英砂、建筑固废、水混合球磨得到砂浆；向砂浆中加入石灰、水泥、复合海泡石、铝粉搅拌均匀，倒入模具中浇注，发气成型形成坯体；将坯体脱膜后切割，蒸得到复合保温轻质蒸压加气混凝土。复合海泡石采用如下工艺制备：将海泡石粉送入硫酸溶液中，50‑60℃搅拌1‑2h，过滤，洗涤呈中性，干燥，然后加入海藻酸钠、微晶纤维素、水充分混合均匀，160‑180℃水热碳化2‑4h，过滤，洗涤，干燥，粉碎得到复合海泡石。本发明所得蒸压加气混凝土密度低、导热系数低、隔音和抗压强度性能均良好。
Composite heat-preservation light autoclaved aerated concrete and preparation method thereof
一种复合保温轻质蒸压加气混凝土及其制备方法
MENG MENG (author) / GAO QIN (author) / MENG WEI (author) / JIANG WENNAN (author) / YU YAWEN (author)
2020-09-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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