ABSTRACT
The presence of man-made chemicals or other alteration in the natural soil environment may cause contamination of land. The most common chemicals involved are petroleum hydrocarbons, solvents, pesticides, lead and other heavy metals for e.g. Copper, Cadmium, Arsenic, lead, mercury etc. Contamination of soil not only changes the engineering properties of soil but also creates health hazard. Soil stabilization is the process of improving the engineering properties of soil. The purpose of modification is to increase the strength, reduce settlement, reduce permeability and inactivate contaminants present in the soil. Cement Kiln Dust (CKD) is a fine powdery material similar in appearance to Portland cement obtained as waste material during cement manufacturing process. Cement Kiln Dust added to soil in modest amount has a beneficial effect on the engineering behaviour of soil. Interaction of CKD with a given soil depends on the chemical and physical properties of CKD as well as the nature of soil. The main aim of the present study is the evaluation of behavior of cadmium contaminated soil with addition of CKD in varying percentage (1%, 2%, 4%, 6%, 8% and 10%). The effect of stabilization of contaminated expansive soil is reported in this paper.
