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A platform for research: civil engineering, architecture and urbanism
Enhanced mine filling material and preparation method thereof
The invention relates to the field of cement-based construction materials, in particular to an enhanced mine filling material and a preparation method thereof. The micro-nano quartz powder and the titanium-loaded micron SAP are added into the mine filling material to improve the mechanical property of the filling material, and the micro-nano quartz powder has certain activity and can promote hydration of cement and play a micro-filling effect, so that the porosity of the filling material is reduced, and the pore structure of the filling material is improved; the titanium-loaded micron SAP is added for internal curing, the internal humidity of the filling material is kept, hydration of cement is promoted, the tensile strength of the titanium-loaded micron SAP is enhanced, then the mechanical property and crack resistance of the mine filling material are improved, mineral powder with the coarse particle size is prepared through grinding of the slag, the partial pozzolanic effect can be exerted, and the filling material has the good filling effect. And the grading of the tailings can be optimized, so that cracking caused by slurry secretion of the filling material due to fine-particle mineral powder in the prior art is avoided.
本发明涉及水泥基施工材料领域，尤其是涉及一种增强型矿山充填材料及其制备方法。本发明通过在矿山充填材料中添加微纳米级石英粉和钛负载微米SAP用以改善充填材料的力学性能，微纳米级石英粉具有一定的活性可以促进水泥的水化并发挥微充填效应，进而降低充填材料的孔隙率、改善充填材料的孔结构，添加钛负载微米SAP进行内养护，保持充填材料的内部湿度和促进水泥的水化，并且钛负载微米SAP抗拉强度得到增强，进而提升矿山充填材料的力学性能和抗裂性，矿渣研磨制备得到粒径较粗的矿粉，可发挥部分火山灰效应，并可对尾砂级配进行优化，避免现有技术中细颗粒矿粉造成的充填材料泌浆导致开裂。
Enhanced mine filling material and preparation method thereof
The invention relates to the field of cement-based construction materials, in particular to an enhanced mine filling material and a preparation method thereof. The micro-nano quartz powder and the titanium-loaded micron SAP are added into the mine filling material to improve the mechanical property of the filling material, and the micro-nano quartz powder has certain activity and can promote hydration of cement and play a micro-filling effect, so that the porosity of the filling material is reduced, and the pore structure of the filling material is improved; the titanium-loaded micron SAP is added for internal curing, the internal humidity of the filling material is kept, hydration of cement is promoted, the tensile strength of the titanium-loaded micron SAP is enhanced, then the mechanical property and crack resistance of the mine filling material are improved, mineral powder with the coarse particle size is prepared through grinding of the slag, the partial pozzolanic effect can be exerted, and the filling material has the good filling effect. And the grading of the tailings can be optimized, so that cracking caused by slurry secretion of the filling material due to fine-particle mineral powder in the prior art is avoided.
本发明涉及水泥基施工材料领域，尤其是涉及一种增强型矿山充填材料及其制备方法。本发明通过在矿山充填材料中添加微纳米级石英粉和钛负载微米SAP用以改善充填材料的力学性能，微纳米级石英粉具有一定的活性可以促进水泥的水化并发挥微充填效应，进而降低充填材料的孔隙率、改善充填材料的孔结构，添加钛负载微米SAP进行内养护，保持充填材料的内部湿度和促进水泥的水化，并且钛负载微米SAP抗拉强度得到增强，进而提升矿山充填材料的力学性能和抗裂性，矿渣研磨制备得到粒径较粗的矿粉，可发挥部分火山灰效应，并可对尾砂级配进行优化，避免现有技术中细颗粒矿粉造成的充填材料泌浆导致开裂。
Enhanced mine filling material and preparation method thereof
增强型矿山充填材料及其制备方法
YANG HAITAO (author) / LIAN XINSHENG (author) / YU HANG (author) / WANG WEI (author) / SUN GUOWEN (author) / NIU QINGHE (author) / WANG YICHAO (author) / WANG WENQIANG (author) / JIANG MENGYING (author) / WU LIPENG (author)
2024-02-20
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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