Experimental Study and Application of Inorganic Solidified Foam Filling Material for Coal Mines
Spontaneous combustion of residual coal in a gob due to air leakage poses a major risk to mining safety. Building an airtight wall is an effective measure for controlling air leakage. A new type of inorganic solidified foam-filled material was developed and its physical and chemical properties were...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2017/3419801 |
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| author | Hu Wen Duo Zhang Zhijin Yu Xuezhao Zheng Shixing Fan Bin Laiwang |
| author_facet | Hu Wen Duo Zhang Zhijin Yu Xuezhao Zheng Shixing Fan Bin Laiwang |
| author_sort | Hu Wen |
| collection | DOAJ |
| description | Spontaneous combustion of residual coal in a gob due to air leakage poses a major risk to mining safety. Building an airtight wall is an effective measure for controlling air leakage. A new type of inorganic solidified foam-filled material was developed and its physical and chemical properties were analyzed experimentally. The compressive strength of this material increased with the amount of sulphoaluminate cement. With an increasing water–cement ratio, the initial setting time was gradually extended while the final setting time firstly shortened and then extended. The change in compressive strength had the opposite tendency. Additionally, as the foam expansion ratio increased, the solidification time tended to decrease but the compressive strength remained approximately constant. With an increase in foam production, the solidification time increased and the compressive strength decreased exponentially. The results can be used to determine the optimal material ratios of inorganic solidified foam-filled material for coal mines, and filling technology for an airtight wall was designed. A field application of the new material demonstrated that it seals crossheadings tightly, leaves no fissures, suppresses air leakage to the gob, and narrows the width of the spontaneous combustion and heat accumulation zone. |
| format | Article |
| id | doaj-art-321fe9e6f4554d37a419c6f2a07f56f4 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-321fe9e6f4554d37a419c6f2a07f56f42025-02-03T01:04:43ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422017-01-01201710.1155/2017/34198013419801Experimental Study and Application of Inorganic Solidified Foam Filling Material for Coal MinesHu Wen0Duo Zhang1Zhijin Yu2Xuezhao Zheng3Shixing Fan4Bin Laiwang5School of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an, Shaanxi 710054, ChinaSchool of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an, Shaanxi 710054, ChinaSchool of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an, Shaanxi 710054, ChinaSchool of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an, Shaanxi 710054, ChinaSchool of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an, Shaanxi 710054, ChinaDoctoral Program, Graduate School of Engineering Science and Technology, National Yunlin University of Science and Technology, 123 University Rd., Sec. 3, Douliou, Yunlin 64002, TaiwanSpontaneous combustion of residual coal in a gob due to air leakage poses a major risk to mining safety. Building an airtight wall is an effective measure for controlling air leakage. A new type of inorganic solidified foam-filled material was developed and its physical and chemical properties were analyzed experimentally. The compressive strength of this material increased with the amount of sulphoaluminate cement. With an increasing water–cement ratio, the initial setting time was gradually extended while the final setting time firstly shortened and then extended. The change in compressive strength had the opposite tendency. Additionally, as the foam expansion ratio increased, the solidification time tended to decrease but the compressive strength remained approximately constant. With an increase in foam production, the solidification time increased and the compressive strength decreased exponentially. The results can be used to determine the optimal material ratios of inorganic solidified foam-filled material for coal mines, and filling technology for an airtight wall was designed. A field application of the new material demonstrated that it seals crossheadings tightly, leaves no fissures, suppresses air leakage to the gob, and narrows the width of the spontaneous combustion and heat accumulation zone.http://dx.doi.org/10.1155/2017/3419801 |
| spellingShingle | Hu Wen Duo Zhang Zhijin Yu Xuezhao Zheng Shixing Fan Bin Laiwang Experimental Study and Application of Inorganic Solidified Foam Filling Material for Coal Mines Advances in Materials Science and Engineering |
| title | Experimental Study and Application of Inorganic Solidified Foam Filling Material for Coal Mines |
| title_full | Experimental Study and Application of Inorganic Solidified Foam Filling Material for Coal Mines |
| title_fullStr | Experimental Study and Application of Inorganic Solidified Foam Filling Material for Coal Mines |
| title_full_unstemmed | Experimental Study and Application of Inorganic Solidified Foam Filling Material for Coal Mines |
| title_short | Experimental Study and Application of Inorganic Solidified Foam Filling Material for Coal Mines |
| title_sort | experimental study and application of inorganic solidified foam filling material for coal mines |
| url | http://dx.doi.org/10.1155/2017/3419801 |
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