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A platform for research: civil engineering, architecture and urbanism
Filling material for mine filling mining
The invention relates to a filling material for mine filling mining. The filling material is prepared from the following raw materials in parts by weight: 250-300 parts of tailing slag, 20-60 parts of cement, 4-15 parts of a water reducing agent, 50-100 parts of desulfurized gypsum, 100-130 parts of fly ash, 80-160 parts of gangue, 30-80 parts of activated red mud, 10-20 parts of polyacrylamide, 15-20 parts of sodium hexametaphosphate and 30-60 parts of modified straw. According to the invention, Si-O and Al-O bonds in the fly ash are promoted to break through the gelling property and strong basicity of the red mud, and the fly ash reacts with alkali to generate hydrated calcium silicate and hydrated calcium aluminate which can increase the strength of the system under the strengthening action of the grinding process; ca (OH) 2 generated by hydration can diffuse to the periphery of the fly ash body to further destroy the structure of the fly ash, the hydrated calcium silicate, the hydrated calcium aluminate and the red mud are gathered together, and under the synergistic promotion effect of the cement, the system has good cementing performance, a certain supporting effect can be achieved, and the mechanical property is indirectly improved.
本发明涉及一种用于矿山充填开采的充填材料，由以下重量份的原料制成：尾矿渣250‑300份、水泥20‑60份、减水剂4‑15份、脱硫石膏50‑100份、粉煤灰100‑130份、矸石80‑160份、活化赤泥30‑80份、聚丙烯酰胺10‑20份、六偏磷酸钠15‑20份、改性秸秆30‑60份。本发明通过赤泥的胶凝性和强碱性，促进粉煤灰内部的Si‑O、Al‑O键断裂，加上研磨过程强化作用，粉煤灰与碱发生反应，生成能够使体系强度增加的水化硅酸钙和水化铝酸钙；并且水化生成的Ca(OH)2会扩散到粉煤灰体周围，进一步破坏粉煤灰结构，水化硅酸钙和水化铝酸钙和赤泥聚交在一起，在水泥的协同促进作用下，使体系具有较好的胶结性能，还能够起到一定的支撑作用，间接提高力学性能。
Filling material for mine filling mining
The invention relates to a filling material for mine filling mining. The filling material is prepared from the following raw materials in parts by weight: 250-300 parts of tailing slag, 20-60 parts of cement, 4-15 parts of a water reducing agent, 50-100 parts of desulfurized gypsum, 100-130 parts of fly ash, 80-160 parts of gangue, 30-80 parts of activated red mud, 10-20 parts of polyacrylamide, 15-20 parts of sodium hexametaphosphate and 30-60 parts of modified straw. According to the invention, Si-O and Al-O bonds in the fly ash are promoted to break through the gelling property and strong basicity of the red mud, and the fly ash reacts with alkali to generate hydrated calcium silicate and hydrated calcium aluminate which can increase the strength of the system under the strengthening action of the grinding process; ca (OH) 2 generated by hydration can diffuse to the periphery of the fly ash body to further destroy the structure of the fly ash, the hydrated calcium silicate, the hydrated calcium aluminate and the red mud are gathered together, and under the synergistic promotion effect of the cement, the system has good cementing performance, a certain supporting effect can be achieved, and the mechanical property is indirectly improved.
本发明涉及一种用于矿山充填开采的充填材料，由以下重量份的原料制成：尾矿渣250‑300份、水泥20‑60份、减水剂4‑15份、脱硫石膏50‑100份、粉煤灰100‑130份、矸石80‑160份、活化赤泥30‑80份、聚丙烯酰胺10‑20份、六偏磷酸钠15‑20份、改性秸秆30‑60份。本发明通过赤泥的胶凝性和强碱性，促进粉煤灰内部的Si‑O、Al‑O键断裂，加上研磨过程强化作用，粉煤灰与碱发生反应，生成能够使体系强度增加的水化硅酸钙和水化铝酸钙；并且水化生成的Ca(OH)2会扩散到粉煤灰体周围，进一步破坏粉煤灰结构，水化硅酸钙和水化铝酸钙和赤泥聚交在一起，在水泥的协同促进作用下，使体系具有较好的胶结性能，还能够起到一定的支撑作用，间接提高力学性能。
Filling material for mine filling mining
一种用于矿山充填开采的充填材料
CHENG BOMING (author) / GUI WANGHUA (author) / WANG JIANNAN (author) / ZHANG HAIJIE (author) / DAI CHAOQUN (author)
2023-05-26
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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