Modeling used engine oil impact on the compaction and strength characteristics of a lateritic soil
Electronic Journal of Geotechnical Engineering
Department of Civil Engineering Science, Faculty of Engineering and the Built Environment, University of Johannesburg, South Africa; Department of Civil Engineering, Federal University of Technology, Akure, Ondo State, Nigeria
This study entails simulating an oil contaminated site by mixing predetermined amounts of used engine oil with lateritic soil samples collected in Akure, south-western Nigeria. Geotechnical testing performed on the studied soils include basic index property tests, compaction tests and strength tests. Soil samples collected from the surrounding of the Engineering Workshop (Machine Shop) building in the Federal University of Technology, Akure were mixed with 0, 2, 4, 6, 8, and 10% of used engine oil by dried weight of the soil. The oil contaminated soils indicated lower Maximum Dry Density (MDD), optimum moisture content (OMC), unconfined compressive strength (UCS) and California Bearing Ratio (CBR) compared to the uncontaminated soil. Regression models for the estimation of compaction and strength characteristics for this type of ferrallitic lateritic soils were established. © 2012 ejge.
Ferrallitic laterite; Land pollution; Regression model; Soil bearing capacity; Waste oil; Compaction; Compressive strength; Lubricating oils; Machine shops; Regression analysis; Soil pollution; Soil surveys; Soils; Soil testing; bearing capacity; compaction; compressive strength; dry density; laterite; modeling; moisture content; numerical model; oil pollution; regression analysis; soil pollution; soil strength; soil test; Akure; Nigeria; Ondo