PERFORMANCE ANALYSIS OF BLACK COTTON SOIL TREATED WITH CALCIUM CARBIDE RESIDUE AND STONE DUST

Black cotton soil have the tendency to shrink when their moisture content is decrease and swell when their moisture content is increased. Quarry wastes, is the one, which is produced in plenty of quantity. In each crusher unit about 20-25 % of the production is left out as the waste material-stone dust. In bulk use of quarry dust is possible through geotechnical applications as, back-fill material, embankment, sub base material. It is a byproduct of the acetylene gas production. CCR (Calcium Carbide Residue) as a treatment of soil, is a technique to save money and time on construction projects. Transform of clay soil into workable, compactable, friable material when CCR used. By CCR stabilization chemical changes in unstable clay soil which have long term effects. Experiments performed on stone dust and CCR combined at different percentage with expansive soil. The test results such as Standard Proctors test, California bearing ratio, and unconfined compression strength obtain on black cotton soil. From this study conclusion drawn that the combination of equal amount of stone dust and CCR is more effective, which is (10%-10%) than the addition of stone dust and CCR individually, to the black cotton soil in controlling the swelling behavior