Fluid loss as a quick method to evaluate the hydraulic conductivity of geosynthetic clay liners under acidic conditions
Data(s) |
01/02/2014
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Resumo |
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). |
Identificador | |
Idioma(s) |
eng |
Publicador |
NRC Research Press (Canadian Science Publishing) |
Relação |
N/A http://dro.deakin.edu.au/eserv/DU:30084837/gates-fluidloss-2014.pdf http://www.nrcresearchpress.com/toc/cgj/51/2 |
Direitos |
2014, NRC Research Press (Canadian Science Publishing) |
Palavras-Chave | #Acid solutions #Bentonite #Fluid loss #Geosynthetic clay liners (GCLs) #Hydraulic conductivity |
Tipo |
Journal Article |