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A platform for research: civil engineering, architecture and urbanism
Coal mine filling material and preparation process thereof
The invention discloses a coal mine filling material, and relates to the technical field of mine filling materials, and the coal mine filling material is prepared from the following raw materials by weight: 20-25 parts of fly ash, 40-45 parts of cement, 5-8 parts of construction waste, 15-18 parts of coal gangue, 2-3 parts of composite fiber, 3-4 parts of an additive, 0.8-1.0 part of an expanding agent, 5-6 parts of a styrene-acrylic emulsion, 0.6-0.7 part of a foam stabilizer, and 100 parts of water. The additive and the expanding agent are added into the filling material, the expansion rate of the filling material can reach 16-22%, the compressive strength is 3.4-4.8 MPa, and the filling material can meet the requirements of filling roof contact and strength.
本发明公开一种煤矿填充材料，涉及矿井填充材料技术领域，由以下重量份数的原料制成：粉煤灰20‑25份，水泥40‑45份，建筑废料5‑8份，煤矸石15‑18份，复合纤维2‑3份，外加剂3‑4份，膨胀剂0.8‑1.0份，苯丙乳液5‑6份，稳泡剂0.6‑0.7份，水100份。该填充材料中添加有外加剂和膨胀剂，填充材料的膨胀率能达到16‑22%，抗压强度为3.4‑4.8MPa，能满足充填接顶和强度的要求。
Coal mine filling material and preparation process thereof
The invention discloses a coal mine filling material, and relates to the technical field of mine filling materials, and the coal mine filling material is prepared from the following raw materials by weight: 20-25 parts of fly ash, 40-45 parts of cement, 5-8 parts of construction waste, 15-18 parts of coal gangue, 2-3 parts of composite fiber, 3-4 parts of an additive, 0.8-1.0 part of an expanding agent, 5-6 parts of a styrene-acrylic emulsion, 0.6-0.7 part of a foam stabilizer, and 100 parts of water. The additive and the expanding agent are added into the filling material, the expansion rate of the filling material can reach 16-22%, the compressive strength is 3.4-4.8 MPa, and the filling material can meet the requirements of filling roof contact and strength.
本发明公开一种煤矿填充材料，涉及矿井填充材料技术领域，由以下重量份数的原料制成：粉煤灰20‑25份，水泥40‑45份，建筑废料5‑8份，煤矸石15‑18份，复合纤维2‑3份，外加剂3‑4份，膨胀剂0.8‑1.0份，苯丙乳液5‑6份，稳泡剂0.6‑0.7份，水100份。该填充材料中添加有外加剂和膨胀剂，填充材料的膨胀率能达到16‑22%，抗压强度为3.4‑4.8MPa，能满足充填接顶和强度的要求。
Coal mine filling material and preparation process thereof
一种煤矿填充材料及其制备工艺
HAO YU (author) / ZHANG LIHUI (author) / ZHAO LIQUN (author)
2023-03-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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