A Review on the Inclusion of Waste Products Available in the Stabilization of Expansive Soils

Abstract

Soil stabilization is the most common ground improvement technique available for the stabilization of the expansive soils. The current study focuses on the use of rice husk ash (RHA) which is considered as an agricultural waste product, fly ash, a coal burning by-product, bagasse fibre, which is an industrial by-product left after crushing the sugarcane for juice extraction, and lime for the stabilization of expansive soils. Various conventional methods are available today for the stabilization of soils containing fines including chemical stabilization, thermal methods, surcharge loading, etc. These different methods have their own advantages and drawbacks. Out of all other methods available, the use of waste product materials proves to be a low-cost and feasible method for the stabilization of expansive soils.