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Fluid loss as a quick method to evaluate the hydraulic conductivity of geosynthetic clay liners under acidic conditions

Liu, Yang, Gates, Will P., Bouazza, Abdelmalek and Rowe, R. Kerry 2014, Fluid loss as a quick method to evaluate the hydraulic conductivity of geosynthetic clay liners under acidic conditions, Canadian geotechnical journal, vol. 51, no. 2, pp. 158-163, doi: 10.1139/cgj-2013-0241.

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Title Fluid loss as a quick method to evaluate the hydraulic conductivity of geosynthetic clay liners under acidic conditions
Author(s) Liu, Yang
Gates, Will P.
Bouazza, Abdelmalek
Rowe, R. Kerry
Journal name Canadian geotechnical journal
Volume number 51
Issue number 2
Start page 158
End page 163
Total pages 6
Publisher NRC Research Press (Canadian Science Publishing)
Place of publication Ottawa, Ont.
Publication date 2014-02
ISSN 1208-6010
Keyword(s) Acid solutions
Bentonite
Fluid loss
Geosynthetic clay liners (GCLs)
Hydraulic conductivity
Summary This study investigates the performance of bentonite components of geosynthetic clay liners (GCLs) when exposed to aggressive leachates using the fluid loss test and provides a possible quick method for estimating the effect of acidic conditions on hydraulic conductivity. Fluid loss generally increases with increasing acid concentrations. Hydraulic conductivity values back-calculated from the fluid loss tests (kFL) are compared with the values measured using a flexible-wall permeameter (kTri).Generally, the predicted hydraulic conductivity values are conservative (kFL/kTri > 1) under water and low acid concentrations(≤0.015 mol/L). However, the back-calculated hydraulic conductivity is shown to be nonconservative (kFL/kTri < 1) at high acid concentrations (≥0.125 mol/L).
Language eng
DOI 10.1139/cgj-2013-0241
Field of Research 090501 Civil Geotechnical Engineering
0905 Civil Engineering
0907 Environmental Engineering
Socio Economic Objective 960908 Mining Land and Water Management
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Grant ID N/A
Copyright notice ©2014, NRC Research Press (Canadian Science Publishing)
Persistent URL http://hdl.handle.net/10536/DRO/DU:30084837

Document type: Journal Article
Collection: Institute for Frontier Materials
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