Effect of Nano-Copper on Performance of Black Cotton Soil

Soil stabilization has become useful solution to treat the weak soil to achieve the required engineering properties. Soil stabilization by adding materials such as cement, lime, bitumen, etc. is the effective method for improving the geotechnical properties of soil which have been applied for many years now. This work is intended to study the effect of adding nano-copper on geotechnical properties of black cotton soil i.e. liquid limit, compaction characteristics, unconfined compression strength, CBR value and swelling pressure. Nanocopper was mixed with soil in three different percentages (i.e. 1, 1.5 and 2.5 % by weight of soil). The optimum nano-copper content found to be 1.5 % for attaining the maximum strength.