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Development of a landfill clay liner using locally available expansive soil

Show simple item record Priyankara, NH Abeyrathne, WKAP Pushpakumara, KMT 2013-11-13T13:13:45Z 2013-11-13T13:13:45Z 2013-11-13
dc.description.abstract Solid waste is a growing problem in urban areas of Sri Lanka and management of waste, both liquid and solid has become a critical environmental concern due to absence of engineered methods of disposing waste. Development of a simple engineered landfill facility utilizing locally available materials to suit landfill liner requirements is the most economical and the timely solution to this problem. In the present study, it was investigated the suitability of expansive soil which is commonly available in the south arid zone of Sri Lanka to use as clay liners in landfill facilities. The engineering properties of soil were improved by the addition of commercially available bentonite to build a low hydraulic conductivity barrier. Further, the long term effect of soil-leachate interaction on hydraulic conductivity of the suggested liner was studied. Results showed that the engineering properties of expansive soil can be improved by the addition of bentonite to meet the landfill liner requirements. However, the original engineering properties of soil-bentonite mixtures were significantly affected by the leachate interaction over a long period of time. en_US
dc.language.iso en en_US
dc.subject Clay liner en_US
dc.subject expansive soil en_US
dc.subject bentonite en_US
dc.subject hydraulic conductivity en_US
dc.subject soil-leachate interaction en_US
dc.title Development of a landfill clay liner using locally available expansive soil en_US
dc.type Conference-Full-text en_US
dc.identifier.year 2012 en_US
dc.identifier.conference ICSBE-2012: International Conference on Sustainable Built Environment en_US Kandy, Sri Lanka en_US en_US

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