Application of a Bentonite Slurry Modified by Polyvinyl Alcohol in the Cutoff of a Landfill
Soil-bentonite cutoff walls are usually used to contain the contaminants of landfills. The pumpability, permeability, and adsorption capability of the slurry are all crucial to the performance of the cutoff wall. In this study, the effect of polyvinyl alcohol (PVA) was used to improve the performanc...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/7409520 |
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| author | Guozhong Dai Yanmin Sheng Yutao Pan Guicai Shi Shujin Li |
| author_facet | Guozhong Dai Yanmin Sheng Yutao Pan Guicai Shi Shujin Li |
| author_sort | Guozhong Dai |
| collection | DOAJ |
| description | Soil-bentonite cutoff walls are usually used to contain the contaminants of landfills. The pumpability, permeability, and adsorption capability of the slurry are all crucial to the performance of the cutoff wall. In this study, the effect of polyvinyl alcohol (PVA) was used to improve the performance of bentonite slurry. A series of lab tests were conducted to evaluate the pumpability, permeability, and adsorption capacity with different concentrations of PVA treatment. Results show that the addition of PVA can increase the fluidity and pumpable period of slurry, which facilitates the casting and grouting during construction. The addition of PVA also helps to reduce the permeability coefficient of slurry and improve the adsorption capability which enhances the cutoff performance of the walls. |
| format | Article |
| id | doaj-art-d39d524eff694461ba3ba0f46f512e6e |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-d39d524eff694461ba3ba0f46f512e6e2025-02-03T05:49:30ZengWileyAdvances in Civil Engineering1687-80861687-80942020-01-01202010.1155/2020/74095207409520Application of a Bentonite Slurry Modified by Polyvinyl Alcohol in the Cutoff of a LandfillGuozhong Dai0Yanmin Sheng1Yutao Pan2Guicai Shi3Shujin Li4School of Civil Engineering and Architecture, Changzhou Institute of Technology, Changzhou 213032, ChinaSchool of Civil Engineering and Architecture, Changzhou Institute of Technology, Changzhou 213032, ChinaDepartment of Civil & Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, 119576, SingaporeSchool of Civil Engineering and Architecture, Changzhou Institute of Technology, Changzhou 213032, ChinaSchool of Civil Engineering and Architecture, Changzhou Institute of Technology, Changzhou 213032, ChinaSoil-bentonite cutoff walls are usually used to contain the contaminants of landfills. The pumpability, permeability, and adsorption capability of the slurry are all crucial to the performance of the cutoff wall. In this study, the effect of polyvinyl alcohol (PVA) was used to improve the performance of bentonite slurry. A series of lab tests were conducted to evaluate the pumpability, permeability, and adsorption capacity with different concentrations of PVA treatment. Results show that the addition of PVA can increase the fluidity and pumpable period of slurry, which facilitates the casting and grouting during construction. The addition of PVA also helps to reduce the permeability coefficient of slurry and improve the adsorption capability which enhances the cutoff performance of the walls.http://dx.doi.org/10.1155/2020/7409520 |
| spellingShingle | Guozhong Dai Yanmin Sheng Yutao Pan Guicai Shi Shujin Li Application of a Bentonite Slurry Modified by Polyvinyl Alcohol in the Cutoff of a Landfill Advances in Civil Engineering |
| title | Application of a Bentonite Slurry Modified by Polyvinyl Alcohol in the Cutoff of a Landfill |
| title_full | Application of a Bentonite Slurry Modified by Polyvinyl Alcohol in the Cutoff of a Landfill |
| title_fullStr | Application of a Bentonite Slurry Modified by Polyvinyl Alcohol in the Cutoff of a Landfill |
| title_full_unstemmed | Application of a Bentonite Slurry Modified by Polyvinyl Alcohol in the Cutoff of a Landfill |
| title_short | Application of a Bentonite Slurry Modified by Polyvinyl Alcohol in the Cutoff of a Landfill |
| title_sort | application of a bentonite slurry modified by polyvinyl alcohol in the cutoff of a landfill |
| url | http://dx.doi.org/10.1155/2020/7409520 |
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