title: Use of rubber and bentonite added fly ash as a liner material.
abstract: In many countries regulations require all hazardous waste disposal facilities to be lined with suitable impermeable barriers to protect against contamination. In this study, a series of laboratory tests on rubber and bentonite added fly ash were conducted. The aim of the tests was to evaluate the feasibility of utilizing fly ash, rubber and bentonite as a low hydraulic conductivity liner material. Type C fly ash was obtained from Soma thermal power plant in Turkey; rubber in pulverized form was waste from the retreading industry. To investigate the properties of rubber and bentonite added fly ash, hydraulic conductivity, leachate analysis, unconfined compression, split tensile strength, one-dimensional consolidation, swell and freeze/thaw cycle tests were performed. The overall evaluation of results have revealed that rubber and bentonite added fly ash showed good promise and a candidate for construction of a liner.
authors.affiliation: Department of Civil Engineering, Middle East Technical University, 06531, Ankara, Turkey. ecokca@metu.edu.tr
authors.forename: Erdal
authors.initials: E
authors.lastname: Cokca
authors.forename: Zeka
authors.initials: Z
authors.lastname: Yilmaz
mesh_terms: D001546:Bentonite / Q000737:chemistry*; D002244:Carbon; D060729:Coal Ash; D003247:Conservation of Natural Resources; D004738:Engineering; D008422:Materials Testing; D052638:Particulate Matter; D012037:Refuse Disposal / Q000379:methods*; D012408:Rubber / Q000737:chemistry*; D012989:Soil Pollutants; D013718:Tensile Strength; D014876:Water Pollution / Q000517:prevention & control*
chemical_list: D060729:Coal Ash; D052638:Particulate Matter; D012989:Soil Pollutants; D001546:Bentonite; D002244:Carbon; D012408:Rubber