• Shirish Sureshrao Maske

The black cotton soils which show very high shear strength in a dry state but rapidly lose their strength on wetting are known as collapsible soils. Such rapid and massive loss of strength produces severe distress leading to extensive cracking and differential settlements, instability of building foundations, and even collapse of structures built on these soils. Waste marble dust and Ground Granulated Blast Furnace Slag is an industrial byproduct and is being produced in large quantities globally poses an environmental hazard. Therefore, it is of the utmost need to look for some sustainable solution for its disposal. The present study focused on the mitigation of the collapse potential of black cotton soil through a physio-chemical process. The soil is sensitive to wetting, warranting its stabilization. Waste marble dust (WMD) and Ground Granulated Blast Furnace Slag (GGBFS) in varying percentages was used as an admixture. The study's optimization process showed that geotechnical parameters of black cotton soil improved substantially by adding waste marble dust. Plasticity was reduced while Unconfined Compressive Strength (UCS) significantly increased. This study appraises the safe disposal of hazardous waste safely and turns these into suitable material for engineering purposes

GGBFS, UCS, WMD, BLACK COTTON SOIL

"Unconfined Compressive Strength Evaluation of Natural Expansive Soil with the Substitution of Combined Industrial Byproducts", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 1, page no.d856-d862, January-2023, Available :http://www.jetir.org/papers/JETIR2301406.pdf

"Unconfined Compressive Strength Evaluation of Natural Expansive Soil with the Substitution of Combined Industrial Byproducts", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 1, page no. ppd856-d862, January-2023, Available at : http://www.jetir.org/papers/JETIR2301406.pdf