Effect of water salinity on the water retention curve of geosynthetic clay liners

Yi Lu; Hossam Abuel-Naga; Eng Choon Leong; Abdelmalek Bouazza; Peter Lock

doi:10.1016/j.geotexmem.2018.07.002

Effect of water salinity on the water retention curve of geosynthetic clay liners

Yi Lu, Hossam Abuel-Naga^*, Eng Choon Leong, Abdelmalek Bouazza, Peter Lock

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

46 Citations (Scopus)

Abstract

The effect of water salinity on the water retention curve of geosynthetic clay liners (GCLs), under constant volume condition is examined. The results indicate that at a constant gravimetric moisture content the total suction increases as the salinity of the wetting liquid increases. Furthermore, the difference in total suction between the GCL hydrated by saline water and distilled water is greater than the difference in the osmotic potential of the wetting water. This behaviour is possibly caused by the matric suction being affected by the expected chemically induced pore size change of the bentonite component of the GCL.

Original language	English
Pages (from-to)	707-714
Number of pages	8
Journal	Geotextiles and Geomembranes
Volume	46
Issue number	6
DOIs	https://doi.org/10.1016/j.geotexmem.2018.07.002
Publication status	Published - Dec 2018
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2018 Elsevier Ltd

ASJC Scopus Subject Areas

General Materials Science
Geotechnical Engineering and Engineering Geology

Keywords

Bentonite
Geosynthetic clay liners
Geosynthetics
Salinity
Water retention

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10.1016/j.geotexmem.2018.07.002

Cite this

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title = "Effect of water salinity on the water retention curve of geosynthetic clay liners",

abstract = "The effect of water salinity on the water retention curve of geosynthetic clay liners (GCLs), under constant volume condition is examined. The results indicate that at a constant gravimetric moisture content the total suction increases as the salinity of the wetting liquid increases. Furthermore, the difference in total suction between the GCL hydrated by saline water and distilled water is greater than the difference in the osmotic potential of the wetting water. This behaviour is possibly caused by the matric suction being affected by the expected chemically induced pore size change of the bentonite component of the GCL.",

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language = "English",

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T1 - Effect of water salinity on the water retention curve of geosynthetic clay liners

AU - Lu, Yi

AU - Abuel-Naga, Hossam

AU - Leong, Eng Choon

AU - Bouazza, Abdelmalek

AU - Lock, Peter

PY - 2018/12

Y1 - 2018/12

N2 - The effect of water salinity on the water retention curve of geosynthetic clay liners (GCLs), under constant volume condition is examined. The results indicate that at a constant gravimetric moisture content the total suction increases as the salinity of the wetting liquid increases. Furthermore, the difference in total suction between the GCL hydrated by saline water and distilled water is greater than the difference in the osmotic potential of the wetting water. This behaviour is possibly caused by the matric suction being affected by the expected chemically induced pore size change of the bentonite component of the GCL.

AB - The effect of water salinity on the water retention curve of geosynthetic clay liners (GCLs), under constant volume condition is examined. The results indicate that at a constant gravimetric moisture content the total suction increases as the salinity of the wetting liquid increases. Furthermore, the difference in total suction between the GCL hydrated by saline water and distilled water is greater than the difference in the osmotic potential of the wetting water. This behaviour is possibly caused by the matric suction being affected by the expected chemically induced pore size change of the bentonite component of the GCL.

KW - Bentonite

KW - Geosynthetic clay liners

KW - Geosynthetics

KW - Salinity

KW - Water retention

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Effect of water salinity on the water retention curve of geosynthetic clay liners

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

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