STRENGTH, SWELL AND SEEPAGE CHARACTERSTICS OF FLYASH AND CEMENT MODIFIED BLACK COTTON SOIL

Nfrastructure projects such as highways, railways embankments etc. require large quantities of soils for their construction. Structures like these located in expansive soil areas needs special attention and for the use of local materials. In this asp ect use of stabilized materials gives are alternative solutions. Fly ash one such material and can b e mixed with expansive soils can be used as geotechnical material. Fly ash is an industria l waste obtained from thermal power plants by burning of coal. In this an attempt is made for the utilization of F ly ash with cement in bulk quantities by adding these to expansive soil and tests like plasticity, swell potential, permeability and UCS were per formed. From the test results it is identified that addition of F ly ash and cement decreases plasticity and improves strength chara cteristics. Addition of F ly ash - cement attain high compressive str ength values of 2.55 - 3.72kP a and improves the seep age characteristics