Stabilisation of Black Cotton Soil using Sawdust & Cement

Stabilization of soils is an effective method for improvement of soil properties and the pavement system performance. The poorest soil among all is Black Cotton Soil (BC Soil). In Indore area this BC Soil is spread over almost all parts of District. Rich proportion of montmorillonite is found in BC Soil from mineralogical analysis. High percentage of montomorillonite renders high degree of expansiveness. These property results cracks in soil without any warning. Stabilization of Black Cotton Soil (BC soil) is studied by using Sawdust and Cement. The moisture changes in BC soils, and property and nature of soil has been greatly improved with the addition of Sawdust and Cement. This paper includes the evaluation of soil properties like Optimum moisture content, dry density, and strength parameter (California Bearing ratio value). Different quantities of Sawdust and Cement (% by weight) are added to the BC soil and the experiments conducted on these soil mixes. The result shows that the use of Sawdust and Cement increases the California Bearing Ratio values i.e. the strength of soil to a great extent.