Effects Of Waste Engine Oil Contamination On The Plasticity, Strength And Permeability Of Lateritic Clay
Isaac I. Akinwumi, Uriel R. Maiyaki, Samuel A. Adubi, Samuel O. Daramola, Bobby B. Ekanem
Index Terms— lateritic soil, soil contamination, subgrade, oil-contaminated soil, used engine oil, waste engine oil
Abstract- This experimental investigation was carried out to determine the effects of contaminating a lateritic clay soil with waste engine oil on its geotechnical engineering properties. Varying percentages (0%, 2%, 4%, 6%, 8% and 10%) of waste engine oil were mixed with the soil, as a simulation of its contamination. Specific gravity, Atterberg limits, compaction, California bearing ratio (CBR) and permeability tests were conducted on the uncontaminated and contaminated soil samples. The specific gravity, plastic limit, optimum moisture content, maximum dry unit weight, and permeability of the soil decreased as its waste engine oil content increased. The liquid limit, plasticity index and CBR of the soil increased as its waste engine oil content increased. The plasticity and permeability properties of the soil make it unsuitable for use as a construction material, without modification or stabilization of the contaminated soil.
 O.A. Bamiro, and O. Osibanjo, Pilot study of used oil in Nigeria, Unpublished Technical Report, 62p., 2004.
 I.N. Obeta, and O.J. Eze-Uzomaka, “Geotechnical properties of waste engine oil contaminated laterites”, Nigerian Journal of Technology, 32(2), 203–210, 2013.
 J. Ochepo, and V. Joseph, “Effect of oil contamination on lime stabilized soil”, Jordan Journal of Civil Engineering, 8(1), 88–96, 2014.
 A.K. Nazir, “Effect of motor oil contamination on geotechnical properties of over consolidated clay”, Alexandria Engineering Journal, 50, 331–335, 2011. doi: 10.1016/j.aej.2011.05.002.
 Z.A.. Rahman, U. Hamzah, M.R. Taha, N.S. Ithnain, and N. Ah-mad, “Influence of oil contamination on geotechnical properties of basaltic residual soil”, American Journal of Applied Sciences, 7(7), 954-961, 2010.
 O.O. Ojuri, and O.O. Ogundipe, “Modelling used engine oil impact on the compaction and strength characteristics of a lateritic soil”, EJGE, 17, 3491-3501, 2012.
 T.S. Ijimdiya, “The effects of oil contamination on the consolida-tion properties of lateritic soil”, Development and Applications of Ocean Engineering (DAOE), 2(2), 53–59, 2013.
 Z.A. Rahman, U. Hamza, and N.B. Ahmad, “Engineering geo-logical properties of oil-contaminated granitic and metasedimen-tary soils”, Sains Malaysiana, 40(4), 293–300, 2011.
 I.I.. Akinwumi, “Earth building construction processes in Benin City, Nigeria and engineering classification of earth materials used”, Indian Journal of Traditional Knowledge, 13(4), 2014.
 I.I.. Akinwumi, “Plasticity, strength and permeability of reclaimed asphalt pavement and lateritic soil blends”, International Journal of Scientific and Engineering Research, 5(6), 631-636, 2014.
 P.O. Awoyera, and I.I. Akinwumi, “Compressive strength devel-opment for cement, lime and termite-hill stabilised lateritic bricks”, The International Journal of Engineering and Science, 3(2), 37-43, 2014.
 I.I. Akinwumi, J.B. Adeyeri, and O.A. Ejohwomu, “Effects of steel slag addition on the plasticity, strength and permeability of lateritic soil”, Proceedings of Second International Conference of Sus-tainable Design, Engineering and Construction, Texas, 457-464, 2012, doi: 10.1061/9780784412688.055.
 I.I. Akinwumi, Utilization of steel slag for the stabilization of a lateritic soil, LAP Lambert Academic Publishing, GmbH & Co. KG, Saarbrücken, 2013.
 BSI, Methods of test for soils for civil engineering purposes, British Standards Institution, BS1377, London, 1990.
 BSI, Stabilised materials for civil engineering purposes: General requirements, sampling, sample preparation and tests on materials before stabilisation, British Standards Institution, BS 1924: Part 1, London, 1990.
 W. Schellmann, A new definition of laterite. Geological Survey of India Memoir, 120, 1-7, 1986.
 I.I. Akinwumi, D. Diwa, and N. Obianigwe, “Effects of crude oil contamination on the index properties, strength and permeability of lateritic clay”, International Journal of Applied Sciences and Engineering Research, 3(4), 2014..