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Characterization of in-situ Lateritic soils as Barrier in Leachate Containment Facilities

Author(s): Olusegun IGE

Journal: Journal of Current Engineering Research
ISSN 2250-2637

Volume: 3;
Issue: 1;
Date: 2013;
Original page

Keywords: Barrier | Nigeria | Landfill | Geotechnical | Sanitary | FEM1 1 | Barrier ¬¬¬¬¬¬¬¬¬¬¬¬¬¬_____________________Barrier | Nigeria | Landfill | Geotechnical | Sanitary | FEM1 1 | Barrier____________________________

This study investigates the geotechnical properties of two soils derived over basement complex rocks, FEM1 1 and FEM1 2, from southwestern Nigeria for their use as barriers in sanitary landfill. Required parameters for soils to be considered as barriers were determined in accordance with the British Standard Institute. Results showed that the soils satisfied basic geotechnical properties and are classified as non-expansive clay of low to medium plasticity. The Maximum Dry Density values are low at standard Proctor energy of compaction but improved under modified condition. FEM1 2 has coefficient of permeability value that fall within several recommendations, even at low energy of compaction. However, FEM1 1 will require higher energy of compaction to achieve require low permeability value. All values generally compare favourably with those suggested by regulatory agencies and several investigators. Thus, they are suitable for use as barriers in sanitary landfills.
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