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Cementing material for modifying bulk filling body, preparation method and application of cementing material
The invention relates to the technical field of filling mining, and particularly discloses a cementing material for modifying a bulk filling body, a preparation method and application of the cementing material. The cementing material for modifying the bulk filling body comprises the following components in percentage by mass: 5-20% of cement clinker, 70-90% of slag powder and 3-10% of desulfurized gypsum powder, wherein the slag powder comprises, by mass, 34-38% of calcium oxide, 7-12% of magnesium oxide, 29-34% of silicon dioxide, 15-17% of aluminum oxide and 1-5% of ferric oxide, and the mass content of calcium sulfate dihydrate in the desulfurized gypsum powder is 90-99%. The cementing material for modifying the bulk filling body, provided by the invention, is simple in component composition, low in cost, low in water demand and easy to prepare, has good cohesiveness and relatively high early strength when being used as a raw material of the filling material, and realizes resource utilization of solid wastes.
本发明涉及充填采矿技术领域，具体公开一种用于散状充填体改性的胶凝材料及其制备方法和应用。所述用于散状充填体改性的胶凝材料包括以下质量百分比的组分：水泥熟料5％‑20％、矿渣粉70％‑90％和脱硫石膏粉3％‑10％；所述矿渣粉按质量百分比包括氧化钙34％‑38％、氧化镁7％‑12％、二氧化硅29％‑34％、三氧化二铝15％‑17％和三氧化二铁1％‑5％；所述脱硫石膏粉中二水硫酸钙的质量含量为90％～99％。本发明提供的用于散状充填体改性的胶凝材料的组分构成简单、成本低、需水量少、易于配置，用于作为充填材料的原料具备良好的粘结性以及较高的早期强度，实现了固废的资源化利用。
Cementing material for modifying bulk filling body, preparation method and application of cementing material
The invention relates to the technical field of filling mining, and particularly discloses a cementing material for modifying a bulk filling body, a preparation method and application of the cementing material. The cementing material for modifying the bulk filling body comprises the following components in percentage by mass: 5-20% of cement clinker, 70-90% of slag powder and 3-10% of desulfurized gypsum powder, wherein the slag powder comprises, by mass, 34-38% of calcium oxide, 7-12% of magnesium oxide, 29-34% of silicon dioxide, 15-17% of aluminum oxide and 1-5% of ferric oxide, and the mass content of calcium sulfate dihydrate in the desulfurized gypsum powder is 90-99%. The cementing material for modifying the bulk filling body, provided by the invention, is simple in component composition, low in cost, low in water demand and easy to prepare, has good cohesiveness and relatively high early strength when being used as a raw material of the filling material, and realizes resource utilization of solid wastes.
本发明涉及充填采矿技术领域，具体公开一种用于散状充填体改性的胶凝材料及其制备方法和应用。所述用于散状充填体改性的胶凝材料包括以下质量百分比的组分：水泥熟料5％‑20％、矿渣粉70％‑90％和脱硫石膏粉3％‑10％；所述矿渣粉按质量百分比包括氧化钙34％‑38％、氧化镁7％‑12％、二氧化硅29％‑34％、三氧化二铝15％‑17％和三氧化二铁1％‑5％；所述脱硫石膏粉中二水硫酸钙的质量含量为90％～99％。本发明提供的用于散状充填体改性的胶凝材料的组分构成简单、成本低、需水量少、易于配置，用于作为充填材料的原料具备良好的粘结性以及较高的早期强度，实现了固废的资源化利用。
Cementing material for modifying bulk filling body, preparation method and application of cementing material
一种用于散状充填体改性的胶凝材料及其制备方法和应用
LIU JIANGONG (author) / WANG HANQIU (author) / WANG YIYING (author) / SHI YANNAN (author) / YAN SHANFEI (author)
2021-04-30
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Cementing material, composite filling body material, concrete and filling body
| European Patent Office | 2021
| European Patent Office | 2022