Gas advective flux of partially saturated geosynthetic clay liners

Abdelmalek Bouazza, Thaveesak Vangpaisal

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

3 Citations (Scopus)

Abstract

A series of gas permeability tests were performed on partially saturated needle punched and stitch bonded geosynthetic clay liners (GCLs) with nitrogen (N2) as the gas permeant fluid. The results of this investigation highlighted the influence of the water content and the hydration process on the gas flow kinetics through geosynthetic clay liners. For the GCLs and conditions examined, it was found that the intrinsic permeability and permittivity decreased as the moisture content increased. The presence of a surcharge seemed to reduce gas flow through GCLs at moisture contents higher than around 50%, however, below this value the surcharge had no effect. Furthermore, it was found that the stitch bonded GCL led to higher gas permeability than the needle-punched material.

Original languageEnglish
Title of host publicationProceedings of Sessions of Geo-Denver 2000 - Advances in Transportation and Geoenvironmental Systems Using Geosynthetics, GSP 103
Pages54-67
Number of pages14
Volume291
DOIs
Publication statusPublished - 2000
EventSessions of Geo-Denver 2000 - Advances in Transportation and Geoenvironmental Systems Using Geosynthetics, GSP 103 - Denver USA, Denver, CO, United States of America
Duration: 5 Aug 20008 Aug 2000

Conference

ConferenceSessions of Geo-Denver 2000 - Advances in Transportation and Geoenvironmental Systems Using Geosynthetics, GSP 103
CountryUnited States of America
CityDenver, CO
Period5/08/008/08/00

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