Author : Noorina Tarannum Khan, Swapnil Walzade and R.K. Yadav

The paper presents the study of Geotechnical Improvement in the properties of Black Cotton Soil by blending it with Blast Furnace Slag. The black cotton soil have high swelling and shrinkage properties, hence it requires improvement, in order to decrease its detrimental effect on the construction over it. The study provides an effective way for the utilization of Blast Furnace Slag, an industrial waste for the purpose of eco-friendly and cost effective soil improvement method. It is also effective in checking the disposal problem of the industrial waste. The testing is done by preparing the samples by blending blast furnace slag with black cotton soil with increasing percentage. The results indicated that there is ample improvement in geotechnical properties of soil by addition of blast furnace slag and volumetric changes by swelling and shrinkage are checked. However, to achieve high soil strength the percentage addition of blast furnace slag needs to be around15-20%.

Keywords: Problematic soil, Black cotton soil, Industrial waste, Blast furnace slag (BFS), Blending

Article published in International Journal of Current Engineering and Technology, Vol.7, No.1 (Feb-2017)