Güney Y, Ozdemir H V
Department of Civil Engineering, University of Anadolu, Ikieylul Campus Eskisehir, Turkey.
Environ Technol. 2005 May;26(5):561-9. doi: 10.1080/09593332608618538.
In this study, sepiolite and natural soil-added sepiolite mixtures were studied to find out whether they can be used as compacted landfill liner, as they are an economic alternative to the other compacted day liners or not. Geotechnical and physico-chemical properties of sepiolite and sepiolite mixtures, containing 25% and 50% natural soil by weight, and compacted at water contents ranging from 35% to 60%, were determined by hydraulic conductivity, leachate analysis, unconfined compression strength, consolidation, volumetric shrinkage and swelling tests. The test results showed that the compacted natural soil-added sepiolite mixtures exhibit lower permeability and swelling properties, and higher compressive strength than pure sepiolite. The overall evaluation of the results has revealed that the natural soil-added sepiolite showed good promise and it can be used as a landfill barrier due to its high capacity of contaminant adsorption.
在本研究中，对海泡石以及添加天然土壤的海泡石混合物进行了研究，以确定它们是否可作为压实垃圾填埋场衬垫，因为它们相对于其他压实日衬垫而言是一种经济的替代方案。通过水力传导率、渗滤液分析、无侧限抗压强度、固结、体积收缩和膨胀试验，测定了海泡石以及分别含有25%和50%（按重量计）天然土壤的海泡石混合物在含水量为35%至60%范围内压实后的岩土工程和物理化学性质。试验结果表明，压实的添加天然土壤的海泡石混合物比纯海泡石表现出更低的渗透性和膨胀性，以及更高的抗压强度。对结果的总体评估表明，添加天然土壤的海泡石前景良好，由于其高污染物吸附能力，可作为垃圾填埋场屏障。
