A coal gangue-based geopolymer grouting material and its preparation method
A grouting material and a technology for coal gangue, which are applied in the field of coal gangue-based geopolymer grouting materials and their preparation, can solve the problems of small overall utilization, poor activity and low comprehensive utilization rate, and reduce the risk of land pollution. , low cost, low price effect
Active Publication Date: 2022-06-03
河北绿园检测认证集团有限公司
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Problems solved by technology
[0005] Coal gangue is the largest industrial waste in my country. Because of its stable structure and poor activity, its overall utilization has not been large for a long time, and its comprehensive utilization rate is not high.
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0037] Water retention agent: methyl cellulose.
[0059] (1) Put the trial mold on the glass plate, and calibrate the zero position.
[0069] The slurries were loaded into a 40 × 40 × 160mm trial mold; placed in a curing box horizontally for 24h and then demoulded. put after demoulding
Embodiment 2
Embodiment 3
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Abstract
The invention discloses a coal gangue-based geological polymer grouting material and a preparation method thereof, belonging to the field of rock mass fissure grouting engineering. The grouting material includes the following components by weight: 80-85 parts of coal gangue powder, 6-10 parts of slag powder, 3-7 parts of fly ash, 1-4 parts of alkaline activator, 0.3-1 part of surface active agent, 1-2 parts retarder, 0.8-1.2 parts water retaining agent. The present invention satisfies the pressure of high-pressure limestone deep in coal mines and pressure-bearing water in fissures, and utilizes coal gangue, slag powder and fly ash as raw materials for industrial solid wastes, which are low in price and meets the requirements of grouting. While the technical performance of the material is required, the cost is low. The grouting material can be used for water prevention and control in the production process of coal mines, effectively reducing the cost of grouting, improving enterprise benefits, and reducing the risk of land pollution.
Description
A kind of gangue-based geopolymer grouting material and preparation method thereof technical field The invention belongs to the field of rock mass fissure grouting engineering, in particular to a kind of gangue-based geopolymer grouting material and its preparation method. Background technique Coal gangue is the rock sandwiched in the coal measure strata, and is a kind of solid waste discharged in the coal mine production process. It is a kind of black, gray-black rock with lower carbon content and higher hardness than coal associated with coal seam during coal formation. The lithology of coal gangue is mostly mudstone, sandy mudstone, sandstone, siltstone, limestone and other sedimentary rocks. [0003] Due to the complexity of geological conditions, various engineering geological disasters occur frequently. Among them, the water-rich broken rock mass is an extremely Common adverse geological conditions, water-rich broken rock mass has the characteristics of poor c...
Claims
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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B111/70
CPCC04B28/006C04B2111/70C04B2111/00724C04B18/12C04B18/141C04B18/08C04B24/16C04B22/16C04B24/383C04B22/062C04B22/147C04B22/10Y02P40/10
Inventor 贾翰卿王少众王丽娟武超超李婷婷解鹏刘超
Owner 河北绿园检测认证集团有限公司
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