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High-strength mineral-based inorganic injection filling material and preparation method thereof
The invention belongs to the technical field of coal mining filling, and provides a high-strength mineral-based inorganic injection filling material and a preparation method thereof. The high-strength mineral-based inorganic injection filling material is prepared from cement, fly ash, silica fume, a water reducing agent, carbon nanotubes and a surfactant. According to the invention, by introducing a one-dimensional material, namely a carbon nanotube, cement-based composite material crack generation and expansion are effectively inhibited, the compressive strength and impact toughness of the material after curing are greatly enhanced, the formed inorganic injection filling material is applied to coal mine discrete rock mass reinforcement and roadway hole filling, the safety of mineral product operation can be guaranteed, and the application space is wide.
本发明属于煤矿开采充填技术领域，提供了一种高强度矿物基无机喷注充填材料及其制备方法，制备所述充填材料的原料包括水泥、粉煤灰、微硅粉、减水剂、碳纳米管和表面活性剂，其中通过引入一维材料——碳纳米管，有效抑制了水泥基复合材料裂纹的产生和扩展，极大的增强了材料固化后的抗压强度和冲击韧性，形成的无机喷注填充材料应用于煤矿散碎岩体加固和巷道孔洞填充，可保证矿产作业的安全，应用空间广阔。
High-strength mineral-based inorganic injection filling material and preparation method thereof
The invention belongs to the technical field of coal mining filling, and provides a high-strength mineral-based inorganic injection filling material and a preparation method thereof. The high-strength mineral-based inorganic injection filling material is prepared from cement, fly ash, silica fume, a water reducing agent, carbon nanotubes and a surfactant. According to the invention, by introducing a one-dimensional material, namely a carbon nanotube, cement-based composite material crack generation and expansion are effectively inhibited, the compressive strength and impact toughness of the material after curing are greatly enhanced, the formed inorganic injection filling material is applied to coal mine discrete rock mass reinforcement and roadway hole filling, the safety of mineral product operation can be guaranteed, and the application space is wide.
本发明属于煤矿开采充填技术领域，提供了一种高强度矿物基无机喷注充填材料及其制备方法，制备所述充填材料的原料包括水泥、粉煤灰、微硅粉、减水剂、碳纳米管和表面活性剂，其中通过引入一维材料——碳纳米管，有效抑制了水泥基复合材料裂纹的产生和扩展，极大的增强了材料固化后的抗压强度和冲击韧性，形成的无机喷注填充材料应用于煤矿散碎岩体加固和巷道孔洞填充，可保证矿产作业的安全，应用空间广阔。
High-strength mineral-based inorganic injection filling material and preparation method thereof
一种高强度矿物基无机喷注充填材料及其制备方法
LIU YUDE (author) / LI YONGJUN (author) / WANG YANXIA (author) / YUE HONGJUN (author) / LI NAN (author) / ZHAO QICHEN (author) / LIU ZHIYONG (author)
2022-02-18
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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