A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Industrial solid waste autoclaved aerated concrete block and preparation method thereof
The invention discloses an industrial solid waste autoclaved aerated concrete block and a preparation method thereof. The concrete block uses fly ash, carbide slag, red mud, lime, desulfurized gypsumand cement as main raw materials and aluminum powder, sodium hydroxide, water glass and the dispersing agent silica fume as additives; the coal ash reacts with components in the carbide slag to generate ettringite, so the strength of the concrete block can be enhanced; a large amount of aluminum oxide contained in the red mud can a replace part of lime and undergo a hydration reaction with the cement, and the aluminum oxide in the red mud can react with calcium hydroxide in the carbide slag, so the strength of the block is enhanced; the coal ash, the carbide slag and the red mud react with oneanother to generate hydrated calcium silicate and hydrated calcium aluminate, so the structural compactness of the block can be improved; and the additives can enhance the foaming stability of the aluminum powder and improve the early strength of the block under an alkaline condition. The method is green and environment-friendly, and the waste of non-renewable resources is effectively reduced.
本发明公布了一种工业固废蒸压加气混凝土砌块及其制备方法，该砌块以粉煤灰、电石渣、赤泥、石灰、脱硫石膏和水泥为主要原料，以铝粉、氢氧化钠、水玻璃和分散剂硅灰为外加剂，粉煤灰与电石渣中的成分反应生成钙矾石，能够增强混凝土砌块的强度，赤泥内含有大量的氧化铝能够代替部分石灰与水泥发生水化反应，且赤泥中的氧化铝能够与电石渣中的氢氧化钙发生反应，增强砌块的强度。粉煤灰、电石渣和赤泥相互反应生成水化硅酸钙和水化铝酸钙，能够提高结构的密实度；外加剂能使砌块在碱性条件下增强铝粉的发泡稳定性和提高砌块的早期强度。绿色、环保，有效地减轻不可再生资源的浪费。
Industrial solid waste autoclaved aerated concrete block and preparation method thereof
The invention discloses an industrial solid waste autoclaved aerated concrete block and a preparation method thereof. The concrete block uses fly ash, carbide slag, red mud, lime, desulfurized gypsumand cement as main raw materials and aluminum powder, sodium hydroxide, water glass and the dispersing agent silica fume as additives; the coal ash reacts with components in the carbide slag to generate ettringite, so the strength of the concrete block can be enhanced; a large amount of aluminum oxide contained in the red mud can a replace part of lime and undergo a hydration reaction with the cement, and the aluminum oxide in the red mud can react with calcium hydroxide in the carbide slag, so the strength of the block is enhanced; the coal ash, the carbide slag and the red mud react with oneanother to generate hydrated calcium silicate and hydrated calcium aluminate, so the structural compactness of the block can be improved; and the additives can enhance the foaming stability of the aluminum powder and improve the early strength of the block under an alkaline condition. The method is green and environment-friendly, and the waste of non-renewable resources is effectively reduced.
本发明公布了一种工业固废蒸压加气混凝土砌块及其制备方法，该砌块以粉煤灰、电石渣、赤泥、石灰、脱硫石膏和水泥为主要原料，以铝粉、氢氧化钠、水玻璃和分散剂硅灰为外加剂，粉煤灰与电石渣中的成分反应生成钙矾石，能够增强混凝土砌块的强度，赤泥内含有大量的氧化铝能够代替部分石灰与水泥发生水化反应，且赤泥中的氧化铝能够与电石渣中的氢氧化钙发生反应，增强砌块的强度。粉煤灰、电石渣和赤泥相互反应生成水化硅酸钙和水化铝酸钙，能够提高结构的密实度；外加剂能使砌块在碱性条件下增强铝粉的发泡稳定性和提高砌块的早期强度。绿色、环保，有效地减轻不可再生资源的浪费。
Industrial solid waste autoclaved aerated concrete block and preparation method thereof
工业固废蒸压加气混凝土砌块及其制备方法
ZHANG YANNIAN (author) / CUI CHANGQING (author) / GU XIAOWEI (author) / HAI HONG (author) / WANG TING (author) / ZHANG YUYU (author) / KANG NAN (author) / WANG TIEYUAN (author) / YAN MINGCHENG (author) / YU YANG (author)
2020-10-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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