Experimental Investigation on the Mixture Ratio and Diffusion Performance of Grouting Materials for Water Bursting Prevention in Coal Mines
Grouting is a common and important technique for water bursting prevention in coal mines; the success of grouting in coal mines depends highly on the flowability of grouting materials and the strength of the hardened body as well. In this paper, a series of performance tests, in terms of the water-c...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/9970524 |
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| author | Huiqing Lian Haiyang Yi Zhenxue Dai Junwen Yang Zhenxing Ji Ruigang Han Lu Meng Yi Yang |
| author_facet | Huiqing Lian Haiyang Yi Zhenxue Dai Junwen Yang Zhenxing Ji Ruigang Han Lu Meng Yi Yang |
| author_sort | Huiqing Lian |
| collection | DOAJ |
| description | Grouting is a common and important technique for water bursting prevention in coal mines; the success of grouting in coal mines depends highly on the flowability of grouting materials and the strength of the hardened body as well. In this paper, a series of performance tests, in terms of the water-cement ratio, viscosity, drainage rate, presetting time, final setting time, compressive strength, and permeability were conducted on the cement-fly ash-based grout at various mixture ratios. The evolution of these performances versus different mixture ratios was analyzed; targeting at the reasonable flowability and hardened strength of grouting materials, an optimized mixture ratio was recognized for water bursting prevention in coal mines. Furthermore, the diffusion experiments of optimized grout material were designed taking into account the influence of confining and hydraulic pressure in the porous medium. As a result, the confining and hydraulic pressures have a linear negative correlation with the diffusion distance of grout materials. These results have guiding significance to water bursting prevention in coal mines. |
| format | Article |
| id | doaj-art-260fe002a4524e7a963cfe6ba11ac0e1 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-260fe002a4524e7a963cfe6ba11ac0e12025-02-03T07:23:58ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422021-01-01202110.1155/2021/99705249970524Experimental Investigation on the Mixture Ratio and Diffusion Performance of Grouting Materials for Water Bursting Prevention in Coal MinesHuiqing Lian0Haiyang Yi1Zhenxue Dai2Junwen Yang3Zhenxing Ji4Ruigang Han5Lu Meng6Yi Yang7School of Emergency Technology and Management, North China Institute of Science and Technology, Langfang 065201, Hebei, ChinaSchool of Safety Supervision, North China Institute of Science and Technology, Langfang 065201, Hebei, ChinaCollege of Construction Engineering, Jilin University, Changchun 130026, ChinaSchool of Emergency Technology and Management, North China Institute of Science and Technology, Langfang 065201, Hebei, ChinaSchool of Safety Supervision, North China Institute of Science and Technology, Langfang 065201, Hebei, ChinaSchool of Emergency Technology and Management, North China Institute of Science and Technology, Langfang 065201, Hebei, ChinaSchool of Emergency Technology and Management, North China Institute of Science and Technology, Langfang 065201, Hebei, ChinaSchool of Emergency Technology and Management, North China Institute of Science and Technology, Langfang 065201, Hebei, ChinaGrouting is a common and important technique for water bursting prevention in coal mines; the success of grouting in coal mines depends highly on the flowability of grouting materials and the strength of the hardened body as well. In this paper, a series of performance tests, in terms of the water-cement ratio, viscosity, drainage rate, presetting time, final setting time, compressive strength, and permeability were conducted on the cement-fly ash-based grout at various mixture ratios. The evolution of these performances versus different mixture ratios was analyzed; targeting at the reasonable flowability and hardened strength of grouting materials, an optimized mixture ratio was recognized for water bursting prevention in coal mines. Furthermore, the diffusion experiments of optimized grout material were designed taking into account the influence of confining and hydraulic pressure in the porous medium. As a result, the confining and hydraulic pressures have a linear negative correlation with the diffusion distance of grout materials. These results have guiding significance to water bursting prevention in coal mines.http://dx.doi.org/10.1155/2021/9970524 |
| spellingShingle | Huiqing Lian Haiyang Yi Zhenxue Dai Junwen Yang Zhenxing Ji Ruigang Han Lu Meng Yi Yang Experimental Investigation on the Mixture Ratio and Diffusion Performance of Grouting Materials for Water Bursting Prevention in Coal Mines Advances in Materials Science and Engineering |
| title | Experimental Investigation on the Mixture Ratio and Diffusion Performance of Grouting Materials for Water Bursting Prevention in Coal Mines |
| title_full | Experimental Investigation on the Mixture Ratio and Diffusion Performance of Grouting Materials for Water Bursting Prevention in Coal Mines |
| title_fullStr | Experimental Investigation on the Mixture Ratio and Diffusion Performance of Grouting Materials for Water Bursting Prevention in Coal Mines |
| title_full_unstemmed | Experimental Investigation on the Mixture Ratio and Diffusion Performance of Grouting Materials for Water Bursting Prevention in Coal Mines |
| title_short | Experimental Investigation on the Mixture Ratio and Diffusion Performance of Grouting Materials for Water Bursting Prevention in Coal Mines |
| title_sort | experimental investigation on the mixture ratio and diffusion performance of grouting materials for water bursting prevention in coal mines |
| url | http://dx.doi.org/10.1155/2021/9970524 |
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