PERFORMANCE ANALYSIS OF STONE DUST STABILIZED CLAYEY SOIL FROM THE BILASIPARA REGION IN NORTH- EASTERN INDIA

Road transportation is a key enabler in the development of nation in this era of globalization. Availability of strong and stable subgrade is an essential requirement for the construction of road pavements. However, along the entire road alignment good quality subgrade soil may not be available. Soil with a large plasticity index like clayey soil is undesirable as a subgrade soil. Change in road alignment to avoid such undesirable subgrade may not be economical or practical always. In such cases, the best remedy is to stabilize the existing soil. Expansive soil like clay can be stabilized by mixing it with non-plastic materials. In the present research paper effects of the mixing of stone dust on the properties of clayey soil are studied. Properties like plastic limit, Maximum Dry Density (MDD) and, Optimum Moisture Content (OMC), California Bearing Ratio (CBR) of clayey soil after mixing with stone dust at various percentages by weight are studied.