A review of experimental and prediction methods for assessing the freezing characteristic curve of GCLs

G. G. Carnero-Guzman, A. Bouazza, W. P. Gates, Ronald Kerry Rowe

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

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 languageEnglish
Title of host publicationProceedings of the 8th International Congress on Environmental Geotechnics Volume 2 - Towards a Sustainable Geoenvironment
EditorsAbdelmalek Bouazza, Liangtong Zhan, Yunmin Chen
PublisherSpringer
Pages616-623
Number of pages8
ISBN (Print)9789811322235
DOIs
Publication statusPublished - 1 Jan 2019
EventInternational Congress on Environmental Geotechnics 2018 - Hangzhou, China
Duration: 28 Oct 20181 Nov 2018
Conference number: 8th
http://www.iceg2018.org/

Publication series

NameEnvironmental Science and Engineering
ISSN (Print)1863-5520
ISSN (Electronic)1863-5539

Conference

ConferenceInternational Congress on Environmental Geotechnics 2018
Abbreviated titleICEG 2018
CountryChina
CityHangzhou
Period28/10/181/11/18
Internet address

Keywords

  • Cold regions engineering
  • Geosynthetic clay liners
  • Unsaturated behavior
  • Unsaturated freezing property functions

Cite this

Carnero-Guzman, G. G., Bouazza, A., Gates, W. P., & Rowe, R. K. (2019). A review of experimental and prediction methods for assessing the freezing characteristic curve of GCLs. In A. Bouazza, L. Zhan, & Y. Chen (Eds.), Proceedings of the 8th International Congress on Environmental Geotechnics Volume 2 - Towards a Sustainable Geoenvironment (pp. 616-623). (Environmental Science and Engineering). Springer. https://doi.org/10.1007/978-981-13-2224-2_76
Carnero-Guzman, G. G. ; Bouazza, A. ; Gates, W. P. ; Rowe, Ronald Kerry. / A review of experimental and prediction methods for assessing the freezing characteristic curve of GCLs. Proceedings of the 8th International Congress on Environmental Geotechnics Volume 2 - Towards a Sustainable Geoenvironment. editor / Abdelmalek Bouazza ; Liangtong Zhan ; Yunmin Chen. Springer, 2019. pp. 616-623 (Environmental Science and Engineering).
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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.",
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Carnero-Guzman, GG, Bouazza, A, Gates, WP & Rowe, RK 2019, A review of experimental and prediction methods for assessing the freezing characteristic curve of GCLs. in A Bouazza, L Zhan & Y Chen (eds), Proceedings of the 8th International Congress on Environmental Geotechnics Volume 2 - Towards a Sustainable Geoenvironment. Environmental Science and Engineering, Springer, pp. 616-623, International Congress on Environmental Geotechnics 2018, Hangzhou, China, 28/10/18. https://doi.org/10.1007/978-981-13-2224-2_76

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 proceedingConference PaperOther

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Carnero-Guzman GG, Bouazza A, Gates WP, Rowe RK. A review of experimental and prediction methods for assessing the freezing characteristic curve of GCLs. In Bouazza A, Zhan L, Chen Y, editors, Proceedings of the 8th International Congress on Environmental Geotechnics Volume 2 - Towards a Sustainable Geoenvironment. Springer. 2019. p. 616-623. (Environmental Science and Engineering). https://doi.org/10.1007/978-981-13-2224-2_76