Experimental Research on Key Factors Influencing the Expansion Performance of New Type Sealing Materials
To improve the borehole sealing effect, especially that of coal seam with low permeability and micro fissures, this paper takes the expansion rate of the sealing material as the response value and establishes the quadratic model embracing the expansion rate and various experimental factors by design...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/6849650 |
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| _version_ | 1832566442479845376 |
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| author | Yaobin Li Xin Guo Sheng Xue Chun-Shan Zheng Maoliang Shen Yang Xu |
| author_facet | Yaobin Li Xin Guo Sheng Xue Chun-Shan Zheng Maoliang Shen Yang Xu |
| author_sort | Yaobin Li |
| collection | DOAJ |
| description | To improve the borehole sealing effect, especially that of coal seam with low permeability and micro fissures, this paper takes the expansion rate of the sealing material as the response value and establishes the quadratic model embracing the expansion rate and various experimental factors by designing orthogonal experiments. The response surface is used to further determine the significance order of each key factor according to the expansion rate and adjust the admixture content to obtain the optimal ratio of the sealing material. For the research investigating a sealing material, the optimal ratio of the sealing material is obtained: the content of water reducing agent of 0.5%, the content of retarder of 0.04%, water-cement ratio of 0.8, and the content of expansion agent of 10%. At this time, the expansion rate reaches 3.136%. Besides, a scanning electron microscope is used to observe the microscopic morphology of the material. According to the scanning electron microscopy analysis of new borehole sealing materials, the surface of the new borehole sealing material shows no holes and possesses compactness; and a large amount of ettringite is formed on the surface of the hydration product of hardened cement slurry. The ettringite improves the expansibility of the material. The new sealing material provides a new idea for gas sealing, which is of great significance to improve the efficiency of borehole extraction, improve the utilization rate of resources, and prevent gas accidents. |
| format | Article |
| id | doaj-art-d37935b03f0b427bad8bbe24d7c8b552 |
| institution | Kabale University |
| issn | 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-d37935b03f0b427bad8bbe24d7c8b5522025-02-03T01:04:11ZengWileyAdvances in Civil Engineering1687-80942021-01-01202110.1155/2021/6849650Experimental Research on Key Factors Influencing the Expansion Performance of New Type Sealing MaterialsYaobin Li0Xin Guo1Sheng Xue2Chun-Shan Zheng3Maoliang Shen4Yang Xu5School of Safety Science and EngineeringSchool of Safety Science and EngineeringSchool of Safety Science and EngineeringSchool of Safety Science and EngineeringSchool of Safety Science and EngineeringCollege of Horticulture Science and EngineeringTo improve the borehole sealing effect, especially that of coal seam with low permeability and micro fissures, this paper takes the expansion rate of the sealing material as the response value and establishes the quadratic model embracing the expansion rate and various experimental factors by designing orthogonal experiments. The response surface is used to further determine the significance order of each key factor according to the expansion rate and adjust the admixture content to obtain the optimal ratio of the sealing material. For the research investigating a sealing material, the optimal ratio of the sealing material is obtained: the content of water reducing agent of 0.5%, the content of retarder of 0.04%, water-cement ratio of 0.8, and the content of expansion agent of 10%. At this time, the expansion rate reaches 3.136%. Besides, a scanning electron microscope is used to observe the microscopic morphology of the material. According to the scanning electron microscopy analysis of new borehole sealing materials, the surface of the new borehole sealing material shows no holes and possesses compactness; and a large amount of ettringite is formed on the surface of the hydration product of hardened cement slurry. The ettringite improves the expansibility of the material. The new sealing material provides a new idea for gas sealing, which is of great significance to improve the efficiency of borehole extraction, improve the utilization rate of resources, and prevent gas accidents.http://dx.doi.org/10.1155/2021/6849650 |
| spellingShingle | Yaobin Li Xin Guo Sheng Xue Chun-Shan Zheng Maoliang Shen Yang Xu Experimental Research on Key Factors Influencing the Expansion Performance of New Type Sealing Materials Advances in Civil Engineering |
| title | Experimental Research on Key Factors Influencing the Expansion Performance of New Type Sealing Materials |
| title_full | Experimental Research on Key Factors Influencing the Expansion Performance of New Type Sealing Materials |
| title_fullStr | Experimental Research on Key Factors Influencing the Expansion Performance of New Type Sealing Materials |
| title_full_unstemmed | Experimental Research on Key Factors Influencing the Expansion Performance of New Type Sealing Materials |
| title_short | Experimental Research on Key Factors Influencing the Expansion Performance of New Type Sealing Materials |
| title_sort | experimental research on key factors influencing the expansion performance of new type sealing materials |
| url | http://dx.doi.org/10.1155/2021/6849650 |
| work_keys_str_mv | AT yaobinli experimentalresearchonkeyfactorsinfluencingtheexpansionperformanceofnewtypesealingmaterials AT xinguo experimentalresearchonkeyfactorsinfluencingtheexpansionperformanceofnewtypesealingmaterials AT shengxue experimentalresearchonkeyfactorsinfluencingtheexpansionperformanceofnewtypesealingmaterials AT chunshanzheng experimentalresearchonkeyfactorsinfluencingtheexpansionperformanceofnewtypesealingmaterials AT maoliangshen experimentalresearchonkeyfactorsinfluencingtheexpansionperformanceofnewtypesealingmaterials AT yangxu experimentalresearchonkeyfactorsinfluencingtheexpansionperformanceofnewtypesealingmaterials |