Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hole sealing material for coal mine gas drainage hole and application of hole sealing material
The invention discloses a hole sealing material for a coal mine gas drainage hole. The hole sealing material is composed of the following components in parts by weight: 50 to 60 parts of cement, 20 to25 parts of red mud, 5 to 10 parts of anhydrous anhydrite, 5 to 10 parts of silica fume, and 5 to 16 parts of an additive for other hole sealing materials. The hole sealing material has the advantages that the water cement ratio is large, the slurry liquidity is good, the pumping performance of the material is improved, the material is suitable for underground long-distance conveying, and tiny cracks can be effectively blocked; the material disclosed by the invention does not bleed, shrink or crack, has micro-expansibility, and is moderate in setting time, high in early strength and good in environmental adaptability; according to the invention, industrial waste red mud and industrial by-products silica fume and desulfurized gypsum are effectively utilized, and a certain amount of solid waste can be consumed while the material cost is reduced, so that the method has more obvious economic benefits and environmental protection significance.
本发明公开了一种用于煤矿瓦斯抽放孔的封孔材料，所述封孔材料由以下成分按重量份组成：水泥50～60份；赤泥20～25份；无水硬石膏5～10份；硅灰5～10份；其他封孔材料用添加剂5～16份。本发明的封孔材料优点在于水灰比大，浆液流动性较好，改善材料的泵送性能，适合井下长距离输送，且能够对微小裂隙进行有效封堵；本发明所述材料不泌水、不收缩、不干裂，具有微膨胀性，凝固时间适中，早期强度高，环境适应性好；本发明有效利用了工业废物赤泥及及工业副产物硅灰和脱硫石膏，降低材料成本的同时可消纳一定量的固体废物，使本发明具有更明显的经济效益和环保意义。
Hole sealing material for coal mine gas drainage hole and application of hole sealing material
The invention discloses a hole sealing material for a coal mine gas drainage hole. The hole sealing material is composed of the following components in parts by weight: 50 to 60 parts of cement, 20 to25 parts of red mud, 5 to 10 parts of anhydrous anhydrite, 5 to 10 parts of silica fume, and 5 to 16 parts of an additive for other hole sealing materials. The hole sealing material has the advantages that the water cement ratio is large, the slurry liquidity is good, the pumping performance of the material is improved, the material is suitable for underground long-distance conveying, and tiny cracks can be effectively blocked; the material disclosed by the invention does not bleed, shrink or crack, has micro-expansibility, and is moderate in setting time, high in early strength and good in environmental adaptability; according to the invention, industrial waste red mud and industrial by-products silica fume and desulfurized gypsum are effectively utilized, and a certain amount of solid waste can be consumed while the material cost is reduced, so that the method has more obvious economic benefits and environmental protection significance.
本发明公开了一种用于煤矿瓦斯抽放孔的封孔材料，所述封孔材料由以下成分按重量份组成：水泥50～60份；赤泥20～25份；无水硬石膏5～10份；硅灰5～10份；其他封孔材料用添加剂5～16份。本发明的封孔材料优点在于水灰比大，浆液流动性较好，改善材料的泵送性能，适合井下长距离输送，且能够对微小裂隙进行有效封堵；本发明所述材料不泌水、不收缩、不干裂，具有微膨胀性，凝固时间适中，早期强度高，环境适应性好；本发明有效利用了工业废物赤泥及及工业副产物硅灰和脱硫石膏，降低材料成本的同时可消纳一定量的固体废物，使本发明具有更明显的经济效益和环保意义。
Hole sealing material for coal mine gas drainage hole and application of hole sealing material
一种用于煤矿瓦斯抽放孔的封孔材料及其用途
SHI ZHUQING (Autor:in) / ZHAO JUN (Autor:in) / ZUO NANNAN (Autor:in) / WANG XUDONG (Autor:in) / LI WEIBIN (Autor:in) / LI XIAOLIN (Autor:in) / GAO WEIJIE (Autor:in) / WANG PENGCHENG (Autor:in) / MENG YING (Autor:in)
15.05.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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