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Volume Title: ICASGE2023

DOI: ICASGE-GEO

¹Ahmed Mustafa Kamel ; ²Mohamed Bahr; ³Mostafa Fawzy Abdelmageed; Ahmed Mustafa Kamel; Mohamed Awad BAHR; Mostafa Fawzy Abdelmageed

¹Construction engineering, October High Institute for Engineering and Technology, Giza, Egypt

²Geotechnical Engineering (GEO)

³Faculty of Engineering, AL Azhar university, Cairo, Egypt

Soil is exposed to oil pollution in most countries around the world due to leakage or spillage of petroleum materials. As a result, waste petroleum contains different components that may interact with the soil and change its properties. Recently, the increase in area development along Cairo Governorate and its extensions faces problems associated with the effect of waste engine oil. The study focused on the effect of oil contamination on the compaction and shear strength characteristics of sandy soil. The selected sand is classified as poorly graded sand, (SP) according to the Unified soil classification system, (USCS). The sandy soil samples were contaminated artificially by mixing with waste engine oil in the amount of 0%, 4%, 8%, 12%, and 16% by dry weight and kept into closed containers for 15 days to ensure equalization. A laboratory investigation is conducted to study the effect of waste engine oil on sand mechanical properties. The testing program included investigation for the compaction, and shear strength characteristics. The results for the non-contaminated sand are taken as references for comparison. The results indicated that waste engine oil reduces the optimum moisture content and increases the maximum dry density. Also, the relative density increases with an increasing waste engine oil up to 12%. This value was decreased with an increase in the contaminant ratio to 16%. As a result, the shear strength parameter in terms of the friction angle decreases with an increase of waste engine oil in the soil

Engine Oil; Contaminated Sand; Shear strength; Friction Angle; compaction; Relative Density

Geotechnical Engineering (GEO)