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

Research output: Contribution to journalArticleResearchpeer-review

18 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 languageEnglish
Pages (from-to)707-714
Number of pages8
JournalGeotextiles and Geomembranes
Volume46
Issue number6
DOIs
Publication statusPublished - 1 Dec 2018

Keywords

  • Bentonite
  • Geosynthetic clay liners
  • Geosynthetics
  • Salinity
  • Water retention

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