Gas permeability of partially hydrated geosynthetic clay liner under two stress conditions
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Rouf, MA, Singh, RM, Bouazza, A, Rowe, RK and Gates, WP (2015) Gas permeability of partially hydrated geosynthetic clay liner under two stress conditions Environmental Geotechnics.
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Abstract
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.
| Item Type: | Article | ||||||||||||||||||
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| Subjects : | Civil Engineering | ||||||||||||||||||
| Divisions : | Faculty of Engineering and Physical Sciences > Civil and Environmental Engineering | ||||||||||||||||||
| Authors : |
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| Date : | 11 September 2015 | ||||||||||||||||||
| DOI : | 10.1680/envgeo.14.00009 | ||||||||||||||||||
| Copyright Disclaimer : | © ICE Publishing 2015, all rights reserved | ||||||||||||||||||
| Uncontrolled Keywords : | Contaminant transport, Gas migration, Landfill | ||||||||||||||||||
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| Depositing User : | Symplectic Elements | ||||||||||||||||||
| Date Deposited : | 01 Aug 2016 09:31 | ||||||||||||||||||
| Last Modified : | 04 Sep 2019 11:04 | ||||||||||||||||||
| URI: | http://epubs.surrey.ac.uk/id/eprint/811571 |
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