Abstract
This study aims to investigate the use of such fibre materials in geotechnical applications and evaluate the impacts of various properties of black cotton soil. In India's central and western parts, black cotton soil is found and usually contains higher proportions of calcium and magnesium carbonates. Due to low bearing capacity and settlement, the geotechnical engineer undertakes numerous problems constructing the foundations due to clayey soil. To solve these problems, researchers concentrated on improving soil strength by adding fibre, lime, etc. In this analysis, various tests were carried out on black cotton soils such as Atterberg’s Limits, Compaction test, Unconfined Compressive Strength, California Bearing Ratio and Shear test with different % of polypropylene fibre (i.e. 0, 0.5%, 1%, 1.5% and 2%) and constant 4% and 6% of basalt fibre and lime. The addition of hybrid fibre and lime decreases the optimum water content and capacity for swelling and improves the soil's strength and dry density.
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