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

被引：43

作者：

Lu, Yi ^{[1
]}

Abuel-Naga, Hossam ^{[2
]}

Leong, Eng-Choon ^{[3
]}

Bouazza, Abdelmalek ^{[4
]}

Lock, Peter ^{[5
]}

机构：

[1] La Trobe Univ, Dept Civil Engn, Melbourne, Vic, Australia

[2] La Trobe Univ, Civil Engn Discipline, Melbourne, Vic, Australia

[3] Nanyang Technol Univ, Sch Civil & Environm Engn, Singapore, Singapore

[4] Monash Univ, Dept Civil Engn, 23 Coll Walk, Clayton, Vic 3800, Australia

[5] La Trobe Univ, La Trobe Inst Mol Sci LIMS, LIMS Bioimaging Facil, Melbourne, Vic, Australia

来源：

GEOTEXTILES AND GEOMEMBRANES | 2018年 / 46卷 / 06期

关键词：

Geosynthetics; Geosynthetic clay liners; Water retention; Bentonite; Salinity; COMPACTED GMZ01 BENTONITE; HYDRAULIC CONDUCTIVITY; HYDROMECHANICAL BEHAVIOR; SWELLING PROPERTIES; GCL; MICROSTRUCTURE; PERFORMANCE; HYDRATION; SUCTION; MONTMORILLONITE;

D O I：

10.1016/j.geotexmem.2018.07.002

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

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.

引用

页码：707 / 714

页数：8

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