Abstract: Black cotton soil exhibits significant swelling and shrinkage characteristics, making it unsuitable for construction without stabilization [1]. This study evaluates the effectiveness of bio-enzyme stabilization using experimental data and compares its performance with lime stabilization based on published literature. Laboratory tests including California Bearing Ratio (CBR), Liquid Limit (LL), Plastic Limit (PL), and permeability were conducted. Results indicate that bio-enzyme treatment improves soil strength and reduces permeability. Comparative analysis shows that while lime stabilization yields higher strength improvement due to pozzolanic reactions, bio-enzymes provide a sustainable and eco-friendly alternative [2], [3], [11]. The study highlights the suitability of bio-enzymes for environmentally conscious soil stabilization practices

Keywords: Black Cotton Soil, Bio-Enzyme, Soil Stabilization, Lime Stabilization, CBR, Atterberg Limits, Sustainable Engineering.

Downloads: | DOI: 10.17148/IARJSET.2026.13442