STABILIZATION OF EXPANSIVE SOIL USING FLY ASH

The property of expansive soils(mainly Black Cotton soil) in general is that they are very hard when in a dry state but they lose all of their strength when in a wet state. In light of this property of expansive soils these soils pose problems worldwide that serve as a challenge to overcome for Geotechnical engineers. One of the most important aspects for construction purposes is soil stabilization which is used widely in foundation and road pavement constructions; this is because such a stabilization regime improves engineering properties of the soil such as volume stability strength and durability. In this process removal or replacement of the problematic soil is done; replacement is done by a better quality material or the soil is treated with an additive.