Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Aerated concrete block prepared by doping iron tailings and preparation method thereof
The invention discloses an aerated concrete block prepared by doping iron tailings and a preparation method thereof. The concrete is prepared from the following raw materials in parts by weight: 50-80 parts of iron tailings, 10-50 parts of cement, 0.5-3 parts of early strength agent, 2-10 parts of cellulose, 2-8 parts of rubber powder, 2-10 parts of polypropylene fiber, 0.5-5 parts of aluminum powder, 2-10 parts of desulfurized gypsum, 0.5-4 parts of a melamine water reducing agent, 5-20 parts of carbide slag and 0.1-3 parts of a foam stabilizer. When the autoclaved aerated concrete block is cured, a mode of combining initial curing and natural curing is adopted, and autoclaved curing is replaced by normal-pressure drying, so that adverse factors such as high energy consumption and harsh conditions during autoclaved curing are effectively avoided; and normal-pressure drying has the advantages of mild conditions and low energy consumption, and is easy for large-scale production. The prepared material has the characteristics of light weight, good heat preservation and insulation effects, high mechanical strength, low production cost and the like, and can effectively realize recycling of the iron tailings and relieve a series of environmental problems caused by accumulation of the iron tailings.
本发明公开了掺用铁尾矿制备的加气混凝土砌块及制备方法。包括以下重量份的原料：铁尾矿50‑80份、水泥10‑50份、早强剂0.5‑3份、纤维素2‑10份、胶粉2‑8份、聚丙烯纤维2‑10份、铝粉0.5‑5份、脱硫石膏2‑10份、三聚氰胺减水剂0.5‑4份、电石渣5‑20份和稳泡剂0.1‑3份。本发明在免蒸压加气混凝土砌块养护时采用初养和自然养护相结合的方式，通过采用常压干燥代替蒸压养护，有效避免了蒸压养护时面临的能耗大，条件苛刻等不利因素；常压干燥具有条件温和，能耗低的优点，易于大规模生产。所制得的材料具有重量轻、保温隔热效果好、力学强度高、生产成本低等特点，同时，可有效实现铁尾矿的资源化，减轻因铁尾矿堆积而导致的系列环境问题。
Aerated concrete block prepared by doping iron tailings and preparation method thereof
The invention discloses an aerated concrete block prepared by doping iron tailings and a preparation method thereof. The concrete is prepared from the following raw materials in parts by weight: 50-80 parts of iron tailings, 10-50 parts of cement, 0.5-3 parts of early strength agent, 2-10 parts of cellulose, 2-8 parts of rubber powder, 2-10 parts of polypropylene fiber, 0.5-5 parts of aluminum powder, 2-10 parts of desulfurized gypsum, 0.5-4 parts of a melamine water reducing agent, 5-20 parts of carbide slag and 0.1-3 parts of a foam stabilizer. When the autoclaved aerated concrete block is cured, a mode of combining initial curing and natural curing is adopted, and autoclaved curing is replaced by normal-pressure drying, so that adverse factors such as high energy consumption and harsh conditions during autoclaved curing are effectively avoided; and normal-pressure drying has the advantages of mild conditions and low energy consumption, and is easy for large-scale production. The prepared material has the characteristics of light weight, good heat preservation and insulation effects, high mechanical strength, low production cost and the like, and can effectively realize recycling of the iron tailings and relieve a series of environmental problems caused by accumulation of the iron tailings.
本发明公开了掺用铁尾矿制备的加气混凝土砌块及制备方法。包括以下重量份的原料：铁尾矿50‑80份、水泥10‑50份、早强剂0.5‑3份、纤维素2‑10份、胶粉2‑8份、聚丙烯纤维2‑10份、铝粉0.5‑5份、脱硫石膏2‑10份、三聚氰胺减水剂0.5‑4份、电石渣5‑20份和稳泡剂0.1‑3份。本发明在免蒸压加气混凝土砌块养护时采用初养和自然养护相结合的方式，通过采用常压干燥代替蒸压养护，有效避免了蒸压养护时面临的能耗大，条件苛刻等不利因素；常压干燥具有条件温和，能耗低的优点，易于大规模生产。所制得的材料具有重量轻、保温隔热效果好、力学强度高、生产成本低等特点，同时，可有效实现铁尾矿的资源化，减轻因铁尾矿堆积而导致的系列环境问题。
Aerated concrete block prepared by doping iron tailings and preparation method thereof
掺用铁尾矿制备的加气混凝土砌块及其制备方法
GU XIAOWEI (Autor:in) / CHI HAOFENG (Autor:in) / LIU JIANPING (Autor:in) / WANG SHINING (Autor:in) / HU ZIYANG (Autor:in) / LIU DONG (Autor:in)
16.04.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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