STUDY ON EFFECTS OF STABILIZATION ON EXPANSIVE SOILS USING MARBLE DUST WASTE

Abstract

The aim is to improve the engineering properties of black cotton soil such that the pavement to be built on such type of soil can efficiently withstand to the applied loads. The main objective of this research is to investigate the possibility of utilizing waste marble dust in stabilizing problematic soils (especially swelling clays).Such soils swell when given an access to water and shrink when they dry out. Several attempts are being made to control the swell-shrink behaviour of these soils. Soil stabilization using chemical admixtures is the oldest and most widespread method of ground improvement. In this study waste marble dust, by-products of marble industry were used for stabilization of expansive soils. To achieve, higher strength, chemical stabilization such as addition of lime or other chemical additives are also used to increase the strength of the BC soils. Use of geo-synthetics is also another way of increasing strength. At last it was also found that engineering properties of black cotton soil substantially improved by addition of marble dust in different proportions from 1% to 4%.