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dc.contributor.authorJabin, Farhanaen
dc.date.accessioned2020-03-19T20:40:32Z
dc.date.available2020-03-19T20:40:32Z
dc.identifier.urihttp://hdl.handle.net/1974/27660
dc.description.abstractA series of laboratory tests were conducted to investigate the effect of prehydration fluid, a 4-mm diameter central coating defect, coating defect position and nature, and the effect of coating orientation of a multi-component coated geosynthetic clay liner (GCL) on interface transmissivity, θ between the interfaces of GCL and a 1.5mm thick high-density polyethylene geomembrane (GMB) when permeated with a simulated municipal solid waste landfill leachate. Also, two different conventional GCLs were used to explore the effect of prehydration and permeant fluid, desiccation of GCL on θ and assess the self-healing capacity of desiccated GCLs for three different permeant solutions under a range of applied stresses (10-150 kPa). It was found that < 70 kPa, θ was dominated by variability in initial contact condition between the interfaces of GMB-GCL and the effect of other factors was largely masked by the contact variability. At 100-150 kPa the effects of initial variability were largely eliminated but there was no notable effect of other factors for both multi-component and conventional GCLs. Desiccation of GCLs increased transmissivity by up to three orders of magnitude compared to an intact specimen at 10-100 kPa. Even at 150 kPa desiccated specimens had θ ≤ 8.0x10-9 m2/s for all specimens tested. The chemical composition of permeant solutions, crack width, and nature of bentonite played an important role in healing the cracks of desiccated GCLs. A new laboratory test setup was developed to apply freeze-thaw cycles at the GMB-GCL interfaces and tests were conducted to do a preliminary study of 5 and 16 freeze-thaw cycles effect, two different prehydration fluids and means of hydration of GCL during freeze-thaw cycles on θ, for a range of stresses (10-100kPa). The preliminary results showed that the new test setup successfully applied freeze/thaw cycles to the interfaces of GMB/GCL. The ice lenses, on thawing had a significant effect on θ at 10 kPa. When GCLs were externally prehydrated with RO water and pore water and then subjected to freeze-thaw cycles, there was no evidence of any significant effect of 5-freeze/thaw cycles but there was an effect of 16 freeze/thaw cycles on interface transmissivity.en
dc.language.isoengen
dc.relation.ispartofseriesCanadian thesesen
dc.rightsQueen's University's Thesis/Dissertation Non-Exclusive License for Deposit to QSpace and Library and Archives Canadaen
dc.rightsProQuest PhD and Master's Theses International Dissemination Agreementen
dc.rightsIntellectual Property Guidelines at Queen's Universityen
dc.rightsCopying and Preserving Your Thesisen
dc.rightsThis publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner.en
dc.subjectInterface Transmissivityen
dc.subjectGeosynthetic Clay Linersen
dc.subjectConventional GCLsen
dc.subjectMulticomponent Coated GCLsen
dc.subjectCoating Defecten
dc.subjectDesiccationen
dc.subjectFreeze/Thaw Cycleen
dc.titleEffect of Coating Defect, Desiccation, and Freeze-Thaw Cycles on Geosynthetic Clay Liner (GCLS) – Geomembrane Interface Transmissivityen
dc.typethesisen
dc.description.degreeM.A.Sc.en
dc.contributor.supervisorRowe, Kerry
dc.contributor.departmentCivil Engineeringen
dc.embargo.termsBefore publishing the paper from my thesis, I want to restrict my thesis for two years.en
dc.embargo.liftdate2025-03-17T14:51:22Z
dc.degree.grantorQueen's University at Kingstonen


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