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A platform for research: civil engineering, architecture and urbanism
Low-cost solid waste-based cementing material
The invention discloses a low-cost solid waste-based cementing material which comprises the following components in parts by weight: 75-85 parts of slag, 8-12 parts of steel slag, 2-4 parts of desulfurized gypsum, 4-6 parts of lime, and 1-3 parts of an exciting agent. In allusion to the characteristic of high sulfur content of the copper tailings, the material design of the cementing material is optimized and combined, the cementing material suitable for cemented filling of the high-sulfur copper tailings is developed, the material can reduce the amount of sulfide converted into sulfate and control generation of excessive AFt, meanwhile, the continuous hydration effect of the material in the later period is fully considered, and the later strength of the filling body is continuously increased. The defects of low strength, high cost, high hydration heat and the like of the high-sulfur superfine tailings which are cemented and filled by ordinary Portland cement are effectively overcome. The cementing material has the advantages of being low in filling cost, high in consolidation capacity and high in filling strength.
本发明公开了一种低成本的固废基胶凝材料，包括以下重量份的组分：矿渣，75‑85份；钢渣，8‑12份；脱硫石膏，2‑4份；石灰，4‑6份；激发剂，1‑3份。本发明针对铜尾矿含硫量高的特点，对胶凝材料的材料设计上进行了优化组合，开发出一种适合高硫铜尾砂胶结充填的胶凝材料，该材料可以减少硫化物转化成硫酸盐的量，控制过多的AFt的产生，同时充分考虑了材料后期的持续水化作用，使得充填体的后期强度持续增长。有效解决高硫超细尾矿采用普通硅酸盐水泥胶结充填存在的强度低、成本高、水化热高等缺点。本发明具有充填成本低、固结能力强以及充填强度高的特点。
Low-cost solid waste-based cementing material
The invention discloses a low-cost solid waste-based cementing material which comprises the following components in parts by weight: 75-85 parts of slag, 8-12 parts of steel slag, 2-4 parts of desulfurized gypsum, 4-6 parts of lime, and 1-3 parts of an exciting agent. In allusion to the characteristic of high sulfur content of the copper tailings, the material design of the cementing material is optimized and combined, the cementing material suitable for cemented filling of the high-sulfur copper tailings is developed, the material can reduce the amount of sulfide converted into sulfate and control generation of excessive AFt, meanwhile, the continuous hydration effect of the material in the later period is fully considered, and the later strength of the filling body is continuously increased. The defects of low strength, high cost, high hydration heat and the like of the high-sulfur superfine tailings which are cemented and filled by ordinary Portland cement are effectively overcome. The cementing material has the advantages of being low in filling cost, high in consolidation capacity and high in filling strength.
本发明公开了一种低成本的固废基胶凝材料，包括以下重量份的组分：矿渣，75‑85份；钢渣，8‑12份；脱硫石膏，2‑4份；石灰，4‑6份；激发剂，1‑3份。本发明针对铜尾矿含硫量高的特点，对胶凝材料的材料设计上进行了优化组合，开发出一种适合高硫铜尾砂胶结充填的胶凝材料，该材料可以减少硫化物转化成硫酸盐的量，控制过多的AFt的产生，同时充分考虑了材料后期的持续水化作用，使得充填体的后期强度持续增长。有效解决高硫超细尾矿采用普通硅酸盐水泥胶结充填存在的强度低、成本高、水化热高等缺点。本发明具有充填成本低、固结能力强以及充填强度高的特点。
Low-cost solid waste-based cementing material
一种低成本的固废基胶凝材料
CHEN XIANSHU (author) / SHI CUNYOU (author) / XIE PENGYANG (author) / ZHANG QIONGQIONG (author) / CUI DENGGUO (author) / QU SHENGHUA (author) / GU JINTU (author) / YING XIAOMENG (author) / ZHU JIPAN (author) / HUANG WEIDING (author)
2021-06-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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