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A platform for research: civil engineering, architecture and urbanism
High-performance autoclaved aerated concrete block prepared from graphite tailings and phosphate tailings and preparation method thereof
The invention discloses a high-performance autoclaved aerated concrete block prepared from graphite tailings and phosphate tailings and a preparation method thereof, and belongs to the technical fieldof building material preparation. Each cubic meter of the building block is prepared from the following raw materials by weight: 300 to 350 kg of graphite tailings, 60 to 70 kg of cement, 100 to 120kg of lime, 15 to 18 kg of phosphate tailings, 0.8 to 0.9 kg of aluminum powder, 0.6 to 0.6 kg of a higher fatty acid waterproofing agent and 0.3 to 0.5 kg of a polycarboxylate-type high-performance water reducing agent. Ca(OH)2 is generated by lime slaking and cement hydration reaction, during the drying process, Ca(OH)2 is evaporated along with the water vapor, penetrates the surface of a plaster layer, and reacts with CO2 in the air to generate CaCO3, and thus the saltpetering phenomenon happens. The higher fatty acid waterproof agent is added in the preparation process, and can prevent water molecules from entering the concrete block, soluble salts in the concrete block will not be brought out by the water molecules, and the saltpetering phenomenon is avoided.
本发明公开了一种利用石墨尾矿和磷尾矿制备的高性能蒸压加气混凝土砌块及其制备方法，属于建筑材料制备技术领域。每立方米砌块的原料质量为：石墨尾矿300‑350kg，水泥60‑70kg，石灰100‑120kg，磷尾矿15‑18kg，铝粉0.8‑0.9kg，高级脂肪酸防水剂0.6‑0.6kg，聚羧酸系高性能减水剂0.3‑0.5kg。由于石灰消化和水泥水化反应生成的Ca(OH)，在干燥过程中随水汽蒸发，渗出抹灰层表面与空气中CO反应生成CaCO，导致砌块泛霜，本发明一种高性能蒸压加气混凝土砌块，在制备过程中添加了高级脂肪酸防水剂，可以防止水分子进入带走砌块内部的可溶性盐，避免泛霜。
High-performance autoclaved aerated concrete block prepared from graphite tailings and phosphate tailings and preparation method thereof
The invention discloses a high-performance autoclaved aerated concrete block prepared from graphite tailings and phosphate tailings and a preparation method thereof, and belongs to the technical fieldof building material preparation. Each cubic meter of the building block is prepared from the following raw materials by weight: 300 to 350 kg of graphite tailings, 60 to 70 kg of cement, 100 to 120kg of lime, 15 to 18 kg of phosphate tailings, 0.8 to 0.9 kg of aluminum powder, 0.6 to 0.6 kg of a higher fatty acid waterproofing agent and 0.3 to 0.5 kg of a polycarboxylate-type high-performance water reducing agent. Ca(OH)2 is generated by lime slaking and cement hydration reaction, during the drying process, Ca(OH)2 is evaporated along with the water vapor, penetrates the surface of a plaster layer, and reacts with CO2 in the air to generate CaCO3, and thus the saltpetering phenomenon happens. The higher fatty acid waterproof agent is added in the preparation process, and can prevent water molecules from entering the concrete block, soluble salts in the concrete block will not be brought out by the water molecules, and the saltpetering phenomenon is avoided.
本发明公开了一种利用石墨尾矿和磷尾矿制备的高性能蒸压加气混凝土砌块及其制备方法，属于建筑材料制备技术领域。每立方米砌块的原料质量为：石墨尾矿300‑350kg，水泥60‑70kg，石灰100‑120kg，磷尾矿15‑18kg，铝粉0.8‑0.9kg，高级脂肪酸防水剂0.6‑0.6kg，聚羧酸系高性能减水剂0.3‑0.5kg。由于石灰消化和水泥水化反应生成的Ca(OH)，在干燥过程中随水汽蒸发，渗出抹灰层表面与空气中CO反应生成CaCO，导致砌块泛霜，本发明一种高性能蒸压加气混凝土砌块，在制备过程中添加了高级脂肪酸防水剂，可以防止水分子进入带走砌块内部的可溶性盐，避免泛霜。
High-performance autoclaved aerated concrete block prepared from graphite tailings and phosphate tailings and preparation method thereof
一种利用石墨尾矿和磷尾矿制备的高性能蒸压加气混凝土砌块及其制备方法
ZHANG YANNIAN (author) / YU YANG (author) / LI ZHIJUN (author) / CHEN ZHIYAN (author) / DU SONGYAN (author) / DONG NING (author) / LI QIQI (author) / CHEN HAO (author) / LIU BAINAN (author) / ZHANG WENJIE (author)
2020-07-03
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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