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A platform for research: civil engineering, architecture and urbanism
Production process of aerated concrete block containing tailing quartz sand
The invention relates to a production process of an aerated concrete block containing tailing quartz sand. The production process comprises the following steps of: pulping, grinding, pouring, cutting and steam curing. In the pulping step, tailing quartz sand, gypsum and water are stirred well in proportion to prepare standby slurry. After quicklime is ground into fine powder, pouring is carried out, namely, the standby slurry, the powdery quicklime and cement are metered according to a ratio, fed through a feeder and uniformly stirred to form mixed slurry, an aluminum powder solution is added according to a ratio to form a liquid-phase mixture, aluminum powder reacts with medium water in an alkaline environment to generate hydrogen, the quicklime reacts with water, silicon dioxide in the tailing quartz sand reacts with Ca(0H)2 and AL2O3 in the cement and the quicklime under a hydrothermal synthesis condition to generate hydrated calcium silicate and hydrated calcium aluminate, and a green body is formed. The green body is cut and then subjected to steam curing. The produced hydrated calcium silicate and hydrated calcium aluminate jointly enhance the strength of the product, and the problem that in the prior art, the compression resistance, shock resistance, tensile strength and shear strength of a wall are difficult to improve is solved.
一种含有尾矿石英砂的加气混凝土砌块的生产工艺，工艺流程步骤为：制浆→粉磨→浇注→切割→蒸养；制浆：对尾矿石英砂与石膏、水按比例搅拌均匀，制成备用料浆；将生石灰磨成细粉后，浇注：将备用料浆与粉状生石灰、水泥按比例计量后通过给料机给料搅拌均匀成为混合料浆，按比例加入铝粉溶液成为液相状的混合料，铝粉在碱性环境下与介质水反应，产生氢气，生石灰与水反应，尾矿石英砂中的二氧化硅在水热合成的条件下与水泥、生石灰中的Ca(0H)2和AL2O3反应，产生水化硅酸钙和水化铝酸钙，形成坯体；对坯体切割后蒸养；产生的水化硅酸钙和水化铝酸钙共同增强了产品的强度，解决了现有技术中难以提升墙体的抗压、抗震、抗拉和抗剪强度的难题。
Production process of aerated concrete block containing tailing quartz sand
The invention relates to a production process of an aerated concrete block containing tailing quartz sand. The production process comprises the following steps of: pulping, grinding, pouring, cutting and steam curing. In the pulping step, tailing quartz sand, gypsum and water are stirred well in proportion to prepare standby slurry. After quicklime is ground into fine powder, pouring is carried out, namely, the standby slurry, the powdery quicklime and cement are metered according to a ratio, fed through a feeder and uniformly stirred to form mixed slurry, an aluminum powder solution is added according to a ratio to form a liquid-phase mixture, aluminum powder reacts with medium water in an alkaline environment to generate hydrogen, the quicklime reacts with water, silicon dioxide in the tailing quartz sand reacts with Ca(0H)2 and AL2O3 in the cement and the quicklime under a hydrothermal synthesis condition to generate hydrated calcium silicate and hydrated calcium aluminate, and a green body is formed. The green body is cut and then subjected to steam curing. The produced hydrated calcium silicate and hydrated calcium aluminate jointly enhance the strength of the product, and the problem that in the prior art, the compression resistance, shock resistance, tensile strength and shear strength of a wall are difficult to improve is solved.
一种含有尾矿石英砂的加气混凝土砌块的生产工艺，工艺流程步骤为：制浆→粉磨→浇注→切割→蒸养；制浆：对尾矿石英砂与石膏、水按比例搅拌均匀，制成备用料浆；将生石灰磨成细粉后，浇注：将备用料浆与粉状生石灰、水泥按比例计量后通过给料机给料搅拌均匀成为混合料浆，按比例加入铝粉溶液成为液相状的混合料，铝粉在碱性环境下与介质水反应，产生氢气，生石灰与水反应，尾矿石英砂中的二氧化硅在水热合成的条件下与水泥、生石灰中的Ca(0H)2和AL2O3反应，产生水化硅酸钙和水化铝酸钙，形成坯体；对坯体切割后蒸养；产生的水化硅酸钙和水化铝酸钙共同增强了产品的强度，解决了现有技术中难以提升墙体的抗压、抗震、抗拉和抗剪强度的难题。
Production process of aerated concrete block containing tailing quartz sand
一种含有尾矿石英砂的加气混凝土砌块的生产工艺
WANG ZHIGUO (author) / ZHANG WEIQIANG (author)
2021-10-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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