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Mining composite cementing material and mining filling material
The invention relates to the field of goaf filling, in particular to a mining composite cementing material and a mining filling material. The cementing material is prepared from, by weight, 75-92 parts of composite portland cement, 5-15 parts of sulphate aluminium cement and 3-10 parts of gypsum. The mining filling material is prepared from the cementing material, coal ash and/or coal gangue. The raw materials for making the mining composite cementing material are wide in resource and low in cost, the prepared cementing material is adjustable in coagulation time and compressive strength, and the mining filling material prepared from the mining composite cementing material, the coal gangue and the coal ash in a mixed mode can meet the requirement for long-distance pumping and can meet the requirements of different kinds of underground filling engineering.
Mining composite cementing material and mining filling material
The invention relates to the field of goaf filling, in particular to a mining composite cementing material and a mining filling material. The cementing material is prepared from, by weight, 75-92 parts of composite portland cement, 5-15 parts of sulphate aluminium cement and 3-10 parts of gypsum. The mining filling material is prepared from the cementing material, coal ash and/or coal gangue. The raw materials for making the mining composite cementing material are wide in resource and low in cost, the prepared cementing material is adjustable in coagulation time and compressive strength, and the mining filling material prepared from the mining composite cementing material, the coal gangue and the coal ash in a mixed mode can meet the requirement for long-distance pumping and can meet the requirements of different kinds of underground filling engineering.
Mining composite cementing material and mining filling material
ZHANG ZHEN (author) / LYU HUAWEN (author) / LIN JIAN (author) / YAN LIXIN (author) / GUO XIANGPING (author) / ZHANG ZHANTAO (author) / WANG TAO (author) / SUN ZHIYONG (author) / WANG ZIYUE (author) / FU YUKAI (author)
2016-02-10
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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