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Gas permeability of partially hydrated geosynthetic clay liner under two stress conditions

Rouf, M.A., Singh, R.M., Bouazza, A., Rowe, R.K. and Gates, W.P. 2016, Gas permeability of partially hydrated geosynthetic clay liner under two stress conditions, Environmental geotechnics, vol. 3, no. 5, pp. 325-333, doi: 10.1680/envgeo.14.00009.

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Title Gas permeability of partially hydrated geosynthetic clay liner under two stress conditions
Author(s) Rouf, M.A.
Singh, R.M.
Bouazza, A.
Rowe, R.K.
Gates, W.P.ORCID iD for Gates, W.P. orcid.org/0000-0001-7388-0289
Journal name Environmental geotechnics
Volume number 3
Issue number 5
Start page 325
End page 333
Total pages 9
Publisher ICE Publishing
Place of publication London, Eng.
Publication date 2016-10-05
ISSN 2051-803X
Summary The results of a series of gas permeability tests, with monitoring of gravimetric/volumetric moisture content and total suction, on a commercially available needle-punched geosynthetic clay liner (GCL) are presented. GCL specimens were partially hydrated with deionised water under 2 and 20 kPa confinement prior to testing. The tests were conducted at differential pressures ranging from 1 to 10 kPa. Gas permeability was found to decrease with an increase in gravimetric/volumetric moisture content and a decrease of suction. The effect of the preconditioning stress was found to be more pronounced at gravimetric moisture contents greater than 40% (25% apparent degree of saturation, 0·30 m3/m3 volumetric moisture content), and suctions less than 1·6 MPa.
Language eng
DOI 10.1680/envgeo.14.00009
Field of Research 090501 Civil Geotechnical Engineering
Socio Economic Objective 960311 Social Impacts of Climate Change and Variability
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Grant ID LP0989415
Copyright notice ©2015, ICE Publishing
Persistent URL http://hdl.handle.net/10536/DRO/DU:30084968

Document type: Journal Article
Collection: Institute for Frontier Materials
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