Abstract
Geosynthetic clay liners (GCLs) are an important part of composite hydraulic barriers in environmental projects, with recent applications in harsh conditions such as in Antarctica. To assure an adequate hydraulic performance of the GCL, the bentonite of the GCL needs to be well-hydrated. However, the sub-zero temperatures attained in Antarctica freeze the water inside the bentonite, and as a result, the hydration process stops with potential consequences on the hydraulic performance of the GCL. To predict the impact of freezing on GCL performance, it is essential to obtain the unsaturated freeze property functions (UFPFs) for the bentonite. The freezing characteristic curve (FCC), which relates the unfrozen water content with freezing temperatures, is the first of the UFPFs, and can be obtained experimentally or by prediction methods. This paper reviews the concepts leading to the determination of the FCC, its relationship with the other UFPFs and its importance for predicting GCL performance in cold regions.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 8th International Congress on Environmental Geotechnics Volume 2 - Towards a Sustainable Geoenvironment |
| Editors | Abdelmalek Bouazza, Liangtong Zhan, Yunmin Chen |
| Publisher | Springer |
| Pages | 616-623 |
| Number of pages | 8 |
| ISBN (Print) | 9789811322235 |
| DOIs | |
| Publication status | Published - 1 Jan 2019 |
| Event | International Congress on Environmental Geotechnics 2018 - Hangzhou, China Duration: 28 Oct 2018 → 1 Nov 2018 Conference number: 8th http://www.iceg2018.org/ |
Publication series
| Name | Environmental Science and Engineering |
|---|---|
| ISSN (Print) | 1863-5520 |
| ISSN (Electronic) | 1863-5539 |
Conference
| Conference | International Congress on Environmental Geotechnics 2018 |
|---|---|
| Abbreviated title | ICEG 2018 |
| Country | China |
| City | Hangzhou |
| Period | 28/10/18 → 1/11/18 |
| Internet address |
Keywords
- Cold regions engineering
- Geosynthetic clay liners
- Unsaturated behavior
- Unsaturated freezing property functions
Cite this
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A review of experimental and prediction methods for assessing the freezing characteristic curve of GCLs. / Carnero-Guzman, G. G.; Bouazza, A.; Gates, W. P.; Rowe, Ronald Kerry.
Proceedings of the 8th International Congress on Environmental Geotechnics Volume 2 - Towards a Sustainable Geoenvironment. ed. / Abdelmalek Bouazza; Liangtong Zhan; Yunmin Chen. Springer, 2019. p. 616-623 (Environmental Science and Engineering).Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other
TY - GEN
T1 - A review of experimental and prediction methods for assessing the freezing characteristic curve of GCLs
AU - Carnero-Guzman, G. G.
AU - Bouazza, A.
AU - Gates, W. P.
AU - Rowe, Ronald Kerry
PY - 2019/1/1
Y1 - 2019/1/1
N2 - Geosynthetic clay liners (GCLs) are an important part of composite hydraulic barriers in environmental projects, with recent applications in harsh conditions such as in Antarctica. To assure an adequate hydraulic performance of the GCL, the bentonite of the GCL needs to be well-hydrated. However, the sub-zero temperatures attained in Antarctica freeze the water inside the bentonite, and as a result, the hydration process stops with potential consequences on the hydraulic performance of the GCL. To predict the impact of freezing on GCL performance, it is essential to obtain the unsaturated freeze property functions (UFPFs) for the bentonite. The freezing characteristic curve (FCC), which relates the unfrozen water content with freezing temperatures, is the first of the UFPFs, and can be obtained experimentally or by prediction methods. This paper reviews the concepts leading to the determination of the FCC, its relationship with the other UFPFs and its importance for predicting GCL performance in cold regions.
AB - Geosynthetic clay liners (GCLs) are an important part of composite hydraulic barriers in environmental projects, with recent applications in harsh conditions such as in Antarctica. To assure an adequate hydraulic performance of the GCL, the bentonite of the GCL needs to be well-hydrated. However, the sub-zero temperatures attained in Antarctica freeze the water inside the bentonite, and as a result, the hydration process stops with potential consequences on the hydraulic performance of the GCL. To predict the impact of freezing on GCL performance, it is essential to obtain the unsaturated freeze property functions (UFPFs) for the bentonite. The freezing characteristic curve (FCC), which relates the unfrozen water content with freezing temperatures, is the first of the UFPFs, and can be obtained experimentally or by prediction methods. This paper reviews the concepts leading to the determination of the FCC, its relationship with the other UFPFs and its importance for predicting GCL performance in cold regions.
KW - Cold regions engineering
KW - Geosynthetic clay liners
KW - Unsaturated behavior
KW - Unsaturated freezing property functions
UR - http://www.scopus.com/inward/record.url?scp=85060605728&partnerID=8YFLogxK
U2 - 10.1007/978-981-13-2224-2_76
DO - 10.1007/978-981-13-2224-2_76
M3 - Conference Paper
AN - SCOPUS:85060605728
SN - 9789811322235
T3 - Environmental Science and Engineering
SP - 616
EP - 623
BT - Proceedings of the 8th International Congress on Environmental Geotechnics Volume 2 - Towards a Sustainable Geoenvironment
A2 - Bouazza, Abdelmalek
A2 - Zhan, Liangtong
A2 - Chen, Yunmin
PB - Springer
ER -