Journal of Research in Environmental Sciences and Engineering

Authors: Rahul Gupta, Anand Kumar Raghuwanshi 

Abstract: Soil stabilization may be defined as the alteration of the properties of an existing soil to meet specified engineering requirements. The main properties that may require to be altered by stabilization are strength, volume stability, durability, and permeability. In India, the black cotton soil covers an area of about 0.8 million sq. km. which is about 20% of the total land area. It is considered as problematic soil due to detrimental volume changes with variation in moisture content. When it comes in contact with water it shows immense swelling whereas it shrinks with the decrease in water content and develops cracks on drying. Now a day the utilization of waste products with soil has gained attention due to the shortage of suitable soil and increasing problems of industrial waste management. Expansive soil samples were collected from Badanavalu, Chamarajanagar district. This soil was classified as CH as per Indian Standard Classification System (ISCS). Different dosages of E-waste i.e. 3,6,9, and 12 were used to stabilize the expansive soil. The performance of E-waste stabilized soil was evaluated using physical and strength performance tests namely; plasticity index, specific gravity, compaction, California bearing ratio (CBR) and Unconfined compressive strength Test (UCS). Based on strength performance tests, it was observed that replacement of E-waste increases the strength of expansive soils. It can be seen that Maximum soaked CBR value was found at addition of 6% E-waste when compared with native soil and the he optimum value of maximum dry density and unconfined compressive strength was found at 6% E-waste.