Optimizing Soil Performance: Using Cement Kiln Dust along with Polymer Integration for Soil Stabilization

The present study explores contaminated soil collected from solid dump yard and its treatment with cement kiln dust in combination with epoxy liquid polymer. The study explores the improvement in mechanical and geotechnical characteristics of stabilized soil’s properties by adding Cement kiln dust and a liquid polymer in different proportions. The comparison for Maximum Dry Density, Unconfined Compressive Strength and California bearing ratio test for untreated and stabilized soil was done. The optimal mixtures of the 10% Cement kiln dust dosage indicate that with usage of cement kiln dust, decreases maximum dry density and optimum moisture content increases. However, Cement kiln dust and epoxy liquid polymer resulted in Unconfined compression test increase from 402.11 kN/m² to 1288 kN/m²and 1005.27 kN/m2 to 3221.825 kN/m2 for a curing time of 14 days and 28days. Moreover, the California bearing ration values also improved 38% with the addition of Cement kiln dust. Over curing periods of 7 and 14 days, Unconfined compression test and California bearing ratio test outcomes show increases due to the of cementitious materials. Additionally, the treated soil exhibits a notable reduction in harmful compounds like Chromium and Lead. The cohesion and frictional properties of stabilized soil showed significant improvement too.