An Experimental Study on Stabilization of Black Cotton Soil by Using Quarry Dust and Lime Mixture

With the increasing of population and the reduction of available land, more and more construction of buildings and other civil engineering structures have to be carried out on weak or soft soil. Owing to such soil of poor shear strength and high swelling & shrinkage, a great diversity of ground improvement techniques such as soil stabilization and reinforcement are employed to improve mechanical behaviour of soil, thereby enhancing the reliability of construction. The correct stabilization of foundation soils constitutes an increasingly important issue in the present civil engineering world. Concerns over the environment have taken significant proportions, and there is the awareness today that efforts must be made to diminish the environmental damage caused by the development of infrastructures. Therefore, it has become urgent not only to find building procedures, which will allow this objective to be achieved, but also to accelerate their implementation. This study is carried out with an intention to evaluate the effects of Quarry dust and lime on the geotechnical properties of the locally available expansive soil from Davanagere city. Tests which are to be carried out on the sample of soil dealt with specific gravity, compaction, California bearing ratio, unconfined compressive strength and shear strength. These tests are to be conducted at both nonstabilized and stabilized states by adding 2%, 4%, 6%, 8% and 10% of lime in addition with 5%, 10%, 15%, 20% and 25% of quarry dust. The results show the effect of quarry dust and lime on geotechnical properties of the soil samples strength. Also it may be estimated that this is an efficient way of reducing costs, without losing the strength gains and water sensibility