EFFECTS OF INDUSTRIAL WASTES ON GEOTECHNICAL PROPERTIES OF CLAYEY SOIL (original) (raw)

The present work focused on studying the effects of liquid industrial waste on the geotechnical properties of clayey soil. The intact clayey soil samples, disturbed and undistutbed had been obtained from countryside city of Alexandria in 2013, which is located to the north of Babylon Governorate. While, the liquid industrial waste is side product disposed from of Al-Musayyib Thermal Electric Power Station, which includes solutions of acidic, alkaline and hydrocarbons. The clayey soil samples were contaminated artificially with four percentage (10, 20, 40 and 100) % by weight of water used in soaking process. The soaking process continued for 30 days. Based on the results of tests, the following observations are obtained: the different percentages of contaminant have slight effects on the chemical and physical properties of soil, but have significant effects on the mechanical properties such as shear strength parameters, where the shear strength parameters decreased by (5-35) %, and consolidation properties, where the coefficient of vertical consolidation increased by (7-28) % in compare with the properties of intact soil. The modulus of subgrade reaction decreased by (4-27) %.