Performance Evaluation of Waste Kota Stone Slurry Powder Mixed with Black Cotton Soil

Abstract

Kota city is having major problem of disposing of waste Kota stone slurry powder. It is a by-product which is obtained during cutting, grinding and polishing operations of locally available Kota stone in stone industries. One of the innovative ground improvement techniques can be practiced by using Kota stone slurry powder (KSSP) as stabilizing agent or admixture. Advantages such as space saving, environmental sustainability, maintained fertility around the area, material availability etc can be offered by this technique. Studied and found that, Kota stone slurry powder is used as a stabilizing material for black cotton soil. Experimental work done in laboratory on black cotton soil and the black cotton soil mixed with waste Kota stone slurry powder. Different proportions of waste Kota stone slurry powder from 4% to 24% at the interval of 4% were mixed with the black cotton soil to improve the soil characteristics. The liquid limit, plastic limit, shrinkage limit, differential free swell, specific gravity, standard proctor test (SP test), unconfined compression test, swell pressure test and California bearing ratio tests are conducted on soil and mix specimens to predict and ascertain the behaviour of the soil and the stabilized BC soil was assessed by evaluating the changes in the physical and strength parameters. Increasing in Kota stone slurry powder upto a certain percent improved the natural soil properties. 20% mix of waste Kota stone slurry powder by dry weight of the soil in the black cotton soil mix is the optimum amount.