Stabilization of Expansive Soils Using Stone Waste Materials: A Review

Abstract

Expansive soils exhibit volume instability, cyclic swell-shrink behavior and low strength. These soils are improved by various stabilization methods. Stabilization of such soils includes both physical stabilization and chemical stabilization. Attempts have been made by many researchers in trying to proffer solutions to this defect by experimenting in innovative ways with different materials that could possibly improve the soil engineering properties and reduce environmental hazards, A more effective and efficient use of natural resources make it suitable for construction and as well be very cost effective. Currently there are large volumes of materials considered as wastes or by-products produced by industrial activities. Wastes from different industries have been used for this purpose.  This paper highlights the results of works done by different researchers on stabilization of expansive soil using stone waste materials as soils stabilizers and for decreasing the environmental hazards. The results of laboratory tests such as unconfined compression strength test (UCS), California bearing ratio (CBR), free swell index, liquid limit, plastic limit, compaction, etc. were presented and discussed in this paper.