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A platform for research: civil engineering, architecture and urbanism
Cement-based filling material containing various solid wastes as well as preparation method and application of cement-based filling material
The invention discloses a cement-based filling material containing various solid wastes as well as a preparation method and application of the cement-based filling material, and belongs to the technical field of mine goaf filling. The filling material is prepared from the following raw materials in percentage by mass: 5%-14% of desulfurized gypsum, 22%-35% of fly ash, 24%-35% of water-quenched slag, 5%-6% of cement and 25%-35% of tap water. A filling body is prepared from the three solid wastes including the desulfurized gypsum, the fly ash and the water-quenched slag together with a small amount of cement, the problem of environmental pollution caused by solid waste stockpiling is solved, and meanwhile, the solid wastes, the cement and water in the filling material are subjected to a hydration reaction to generate a large amount of hydration products, so that the high-strength filling body is formed, and the strength of filling bodies required by underground mining can be met. In addition, the process is simple, and the prepared filling slurry is good in fluidity and can be filled into a goaf in a self-flowing or pumping mode. A new change is brought to the traditional mining filling technology.
本发明公开了一种含多种固体废弃物的水泥基充填材料及其制备方法和应用，属于矿山采空区充填技术领域。本发明所述充填材料由如下质量百分含量的原料组成：脱硫石膏5％‑14％、粉煤灰22％‑35％、水淬渣24％‑35％、水泥5％‑6％和自来水25％‑35％。通过利用脱硫石膏、粉煤灰和水淬渣三种固体废弃物，配以少量水泥制备充填体，解决了其固废堆存带来的环境污染问题，同时所述充填材料中固体废弃物、水泥和水发生水化反应生成大量的水化产物，从而形成具有高强度的充填体，能够满足地下开采充填体所需强度。此外，本发明工艺简单，所制备充填料浆流动性好，可通过自流或泵送的方式充填进入采空区。本发明为传统采矿充填技术带来新的变革。
Cement-based filling material containing various solid wastes as well as preparation method and application of cement-based filling material
The invention discloses a cement-based filling material containing various solid wastes as well as a preparation method and application of the cement-based filling material, and belongs to the technical field of mine goaf filling. The filling material is prepared from the following raw materials in percentage by mass: 5%-14% of desulfurized gypsum, 22%-35% of fly ash, 24%-35% of water-quenched slag, 5%-6% of cement and 25%-35% of tap water. A filling body is prepared from the three solid wastes including the desulfurized gypsum, the fly ash and the water-quenched slag together with a small amount of cement, the problem of environmental pollution caused by solid waste stockpiling is solved, and meanwhile, the solid wastes, the cement and water in the filling material are subjected to a hydration reaction to generate a large amount of hydration products, so that the high-strength filling body is formed, and the strength of filling bodies required by underground mining can be met. In addition, the process is simple, and the prepared filling slurry is good in fluidity and can be filled into a goaf in a self-flowing or pumping mode. A new change is brought to the traditional mining filling technology.
本发明公开了一种含多种固体废弃物的水泥基充填材料及其制备方法和应用，属于矿山采空区充填技术领域。本发明所述充填材料由如下质量百分含量的原料组成：脱硫石膏5％‑14％、粉煤灰22％‑35％、水淬渣24％‑35％、水泥5％‑6％和自来水25％‑35％。通过利用脱硫石膏、粉煤灰和水淬渣三种固体废弃物，配以少量水泥制备充填体，解决了其固废堆存带来的环境污染问题，同时所述充填材料中固体废弃物、水泥和水发生水化反应生成大量的水化产物，从而形成具有高强度的充填体，能够满足地下开采充填体所需强度。此外，本发明工艺简单，所制备充填料浆流动性好，可通过自流或泵送的方式充填进入采空区。本发明为传统采矿充填技术带来新的变革。
Cement-based filling material containing various solid wastes as well as preparation method and application of cement-based filling material
一种含多种固体废弃物的水泥基充填材料及其制备方法和应用
CAO SHUAI (author) / SONG WEIDONG (author) / LI JIAJIAN (author) / HUANG ZHIQIANG (author)
2021-06-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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