Author:
Negahdar Alireza,Ghadimi Narmin
Abstract
Exploitation of crude oil, as well as spills and leakage, can contribute to soil contamination that causes changes in the physical and chemical features of the soil. The present study evaluated the effect of light crude oil on the geotechnical parameters of sandy clay soil in the laboratory. Mixtures of kaolinite and sand were combined with different amounts of light crude oil. The results for contaminated soil showed that, as the crude oil content increased, the LL, PL, maximum dry density, cohesion coefficient of samples containing 40% sand and internal friction angles of samples containing 10% and 25% sand increased. The optimum moisture content, cohesion coefficient of samples containing 10% and 25% sand, internal friction angles of samples containing 40% sand and UCS of all samples decreased. Also, because some oil compounds will evaporate along with water, a new formula has been proposed to determine the moisture content of contaminated soil.
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