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.
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3 October 2016
Research Article|
October 08 2014
Gas permeability of partially hydrated geosynthetic clay liner under two stress conditions Available to Purchase
M. A. Rouf, BSc, MEng;
M. A. Rouf, BSc, MEng
PhD student
Department of Civil Engineering, Monash University, Clayton, Australia
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R. M. Singh, BEng, MTech, PhD;
R. M. Singh, BEng, MTech, PhD
Research Fellow
Department of Civil Engineering, Monash University, Clayton, Australia
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A. Bouazza, Civil Ing, PhD, FIEAust;
A. Bouazza, Civil Ing, PhD, FIEAust
Professor
Department of Civil Engineering, Monash University, Clayton, Australia
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R. K. Rowe, BSc, BE, PhD, DEng, FRS, FREng, FRSC, FCAE, FEIC, FIE (Aust), PEng;
R. K. Rowe, BSc, BE, PhD, DEng, FRS, FREng, FRSC, FCAE, FEIC, FIE (Aust), PEng
Professor
Department of Civil Engineering, Queen’s University, Kingston, Canada
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W. P. Gates, BSc, MSc, PhD(Sc)
W. P. Gates, BSc, MSc, PhD(Sc)
Senior Research Fellow
Department of Civil Engineering, Monash University, Clayton, Australia
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Publisher: Emerald Publishing
Received:
March 02 2014
Accepted:
September 09 2014
ICE Publishing: All rights reserved
2016
Environmental Geotechnics (2016) 3 (5): 325–333.
Article history
Received:
March 02 2014
Accepted:
September 09 2014
Citation
Rouf MA, Singh RM, Bouazza A, Rowe RK, Gates WP (2016), "Gas permeability of partially hydrated geosynthetic clay liner under two stress conditions". Environmental Geotechnics, Vol. 3 No. 5 pp. 325–333, doi: https://doi.org/10.1680/envgeo.14.00009
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