Soil stabilization is very critical for the construction of structures which is widely used in the alignment with pavement design because it improves the engineering and index properties of soil such as strength, volume stability and durability. In the present investigation is to determine the use of fly ash to stabilize the black cotton soil and to check the stability of the soil. In the study concludes that with percentage addition of fly ash improves the strength of stabilized black cotton soil due to the pozzolanic properties of the soil and exhibit relatively well-defined moisture-density relationship.
