Use of Additives in Soil Stabilization

Abstract

Soil stabilization is a ground improvement technique through which soil is made strong enough to bear the structures load. The swell-shrink properties of expansive soils can be reduced and made useful for construction purposes using various stabilizing materials like cement, lime, fly ash, chemicals, etc. Cement stabilization causes environmental pollution. Microbial-induced carbonate precipitation and enzymatic-induced carbonate precipitation methods can be considered as innovative methods in place of cement soil stabilization. If the cement, lime, fly ash and various chemicals are used in a suitable proportion, the geotechnical properties can be increased during stabilization of soils. The paper also focusses about the expansive and collapsible soils.

Keywords: Soil stabilization, expansive soil, collapsible soil, cement, lime, fly ash, chemicals