SYMPOSIA PAPER Published: 22 August 2013
STP156220120089

Interface Transmissivity Measurement in Multicomponent Geosynthetic Clay Liners

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Three different multicomponent geosynthetic clay liners (GCLs) from different manufacturers are tested in a transmissivity cell with a new testing procedure to quantify the flow rate and the interface transmissivity between the coating or attached film presenting a hole and the upper geotextile of the GCL. The testing device was previously used in studies aiming to evaluate the interface transmissivity between a damaged geomembrane (GM) and a regular GCL. Different results are obtained regarding the evolution with the time of the flow rate ranging from 1.73 × 10−11 m3/s to 2.18 × 10−10 m3/s at steady state, which is on average in the range of flow rate results obtained with a GM–GCL composite liner. Additional tests performed by adding a GM on top give lower values of flow rates. This shows the importance of the film or coating rigidity for decreasing flow rate and insuring a better quality contact at the interface.

Author Information

Bannour, H.
Irstea, HBAN Unit, Antony, FR
Touze-Foltz, N.
Irstea, HBAN Unit, Antony, FR
Courté, A.
Irstea, HBAN Unit, Antony, FR
von Maubeuge, K., P.
NAUE GmbH and Co., KG, Espelkamp-Fiestel, DE
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Details
Developed by Committee: D35
Pages: 47–61
DOI: 10.1520/STP156220120089
ISBN-EB: 978-0-8031-7573-0
ISBN-13: 978-0-8031-7548-8