Some Geotechnical Properties of Palm Biodiesel Contaminated Mining Sand and Weathered Granite Soil

Oil-pollution due to accidental during transportation or leakage from storage not only brings large damage to the environments, but it also affects the geotechnical properties of soil. Hence, an extensive laboratory testing program was carried out to investigate the geotechnical properties on palm biodiesel contaminated weathered granite soil and mining sand. A series of laboratory experiments has been carried out by using a direct simple shear device on clean and contaminated soil samples. The contaminated soil samples were mixed with palm biodiesel in the amount 5%, 10% and 15% by dry weight. The objective of this study is to determine the effects of palm biodiesel contamination on the mining sand and weathered granite soil samples. The overall results indicated decrease of shear strength with increasing palm biodiesel contents.