Thermal Conductivity of Compacted GO-GMZ Bentonite Used as Buffer Material for a High-Level Radioactive Waste Repository
In China, Gaomiaozi (GMZ) bentonite serves as a feasible buffer material in the high-level radioactive waste (HLW) repository, while its thermal conductivity is seen as a crucial parameter for the safety running of the HLW disposal. Due to the tremendous amount of heat released by such waste, the th...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
|
| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/9530813 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832550423693623296 |
|---|---|
| author | Yong-Gui Chen Xue-Min Liu Xiang Mu Wei-Min Ye Yu-Jun Cui Bao Chen Dong-Bei Wu |
| author_facet | Yong-Gui Chen Xue-Min Liu Xiang Mu Wei-Min Ye Yu-Jun Cui Bao Chen Dong-Bei Wu |
| author_sort | Yong-Gui Chen |
| collection | DOAJ |
| description | In China, Gaomiaozi (GMZ) bentonite serves as a feasible buffer material in the high-level radioactive waste (HLW) repository, while its thermal conductivity is seen as a crucial parameter for the safety running of the HLW disposal. Due to the tremendous amount of heat released by such waste, the thermal conductivity of the buffer material is a crucial parameter for the safety running of the high-level radioactive waste disposal. For the purpose of improving its thermal conductivity, this research used the graphene oxide (GO) to modify the pure bentonite and then the nanocarbon-based bentonite (GO-GMZ) was obtained chemically. The thermal conductivity of this modified soil has been measured and investigated under various conditions in this study: the GO content, dry density, and water content. Researches confirm that the thermal conductivity of the modified bentonite is codetermined by the three conditions mentioned above, namely, the value of GO content, dry density, and water content. Besides, the study proposes an improved geometric mean model based on the special condition to predict the thermal conductivity of the compacted specimen; moreover, the calculated values are also compared with the experimental data. |
| format | Article |
| id | doaj-art-6ebebc1d99d240f595395b8de275ad2b |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-6ebebc1d99d240f595395b8de275ad2b2025-02-03T06:06:46ZengWileyAdvances in Civil Engineering1687-80861687-80942018-01-01201810.1155/2018/95308139530813Thermal Conductivity of Compacted GO-GMZ Bentonite Used as Buffer Material for a High-Level Radioactive Waste RepositoryYong-Gui Chen0Xue-Min Liu1Xiang Mu2Wei-Min Ye3Yu-Jun Cui4Bao Chen5Dong-Bei Wu6Department of Geotechnical Engineering, Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, ChinaDepartment of Geotechnical Engineering, Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, ChinaDepartment of Geotechnical Engineering, Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, ChinaDepartment of Geotechnical Engineering, Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, ChinaLaboratoire Navier/CERMES, Ecole des Ponts-ParisTech, 6-8 Av. Blaise Pascal, Cité Descartes, 77455 Marne-la–Vallée, FranceDepartment of Geotechnical Engineering, Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, ChinaCollege of Chemistry and Chemical Engineering, Tongji University, Shanghai 200092, ChinaIn China, Gaomiaozi (GMZ) bentonite serves as a feasible buffer material in the high-level radioactive waste (HLW) repository, while its thermal conductivity is seen as a crucial parameter for the safety running of the HLW disposal. Due to the tremendous amount of heat released by such waste, the thermal conductivity of the buffer material is a crucial parameter for the safety running of the high-level radioactive waste disposal. For the purpose of improving its thermal conductivity, this research used the graphene oxide (GO) to modify the pure bentonite and then the nanocarbon-based bentonite (GO-GMZ) was obtained chemically. The thermal conductivity of this modified soil has been measured and investigated under various conditions in this study: the GO content, dry density, and water content. Researches confirm that the thermal conductivity of the modified bentonite is codetermined by the three conditions mentioned above, namely, the value of GO content, dry density, and water content. Besides, the study proposes an improved geometric mean model based on the special condition to predict the thermal conductivity of the compacted specimen; moreover, the calculated values are also compared with the experimental data.http://dx.doi.org/10.1155/2018/9530813 |
| spellingShingle | Yong-Gui Chen Xue-Min Liu Xiang Mu Wei-Min Ye Yu-Jun Cui Bao Chen Dong-Bei Wu Thermal Conductivity of Compacted GO-GMZ Bentonite Used as Buffer Material for a High-Level Radioactive Waste Repository Advances in Civil Engineering |
| title | Thermal Conductivity of Compacted GO-GMZ Bentonite Used as Buffer Material for a High-Level Radioactive Waste Repository |
| title_full | Thermal Conductivity of Compacted GO-GMZ Bentonite Used as Buffer Material for a High-Level Radioactive Waste Repository |
| title_fullStr | Thermal Conductivity of Compacted GO-GMZ Bentonite Used as Buffer Material for a High-Level Radioactive Waste Repository |
| title_full_unstemmed | Thermal Conductivity of Compacted GO-GMZ Bentonite Used as Buffer Material for a High-Level Radioactive Waste Repository |
| title_short | Thermal Conductivity of Compacted GO-GMZ Bentonite Used as Buffer Material for a High-Level Radioactive Waste Repository |
| title_sort | thermal conductivity of compacted go gmz bentonite used as buffer material for a high level radioactive waste repository |
| url | http://dx.doi.org/10.1155/2018/9530813 |
| work_keys_str_mv | AT yongguichen thermalconductivityofcompactedgogmzbentoniteusedasbuffermaterialforahighlevelradioactivewasterepository AT xueminliu thermalconductivityofcompactedgogmzbentoniteusedasbuffermaterialforahighlevelradioactivewasterepository AT xiangmu thermalconductivityofcompactedgogmzbentoniteusedasbuffermaterialforahighlevelradioactivewasterepository AT weiminye thermalconductivityofcompactedgogmzbentoniteusedasbuffermaterialforahighlevelradioactivewasterepository AT yujuncui thermalconductivityofcompactedgogmzbentoniteusedasbuffermaterialforahighlevelradioactivewasterepository AT baochen thermalconductivityofcompactedgogmzbentoniteusedasbuffermaterialforahighlevelradioactivewasterepository AT dongbeiwu thermalconductivityofcompactedgogmzbentoniteusedasbuffermaterialforahighlevelradioactivewasterepository |