• Vishal Thakur
• Dr. Prashant Garg
• Gagandeep kaur grewal

The changes made in the soil to enhance its quality as per the requirement is termed as soil stabilization. Properties of soil vary with kind of environment soils are exposed to, so investigation of each soil needs discrepancy from other. In this research, we dealt with the stabilization of highly clayey soil to improve its Physical aspects like its Atterberg’s limits, strength parameters and C & ϕ. dealing with highly clayey soil proves a tiresome job for civil engineer. But it its improvisation ought to be cost effective. So, Stabilization is done by using different material which is readily available in locality such as ESP and RHA. We commence our investigation with replacement of RHA and ESP individually in the proportions of beginning from 6%, 12% up to 18% and 2%, 4%, 6% and 8% respectively. Maximum increment in case of ESP is around 353% after 3 days of curing period and around 121% increment is noted in case of RHA. We also add combination of both the material at different proportion to calculate the optimum CBR value after 3 days of curing period. At the proportion of 12% RHA and 6% ESP we got the desired value and CBR increased around 445% in this case. In this research, C and ϕ value is also evaluated at optimum content of ESP, RHA and combination of both the material. It is found that both these values were enhanced.

Black Cotton Soil(BCS), Rice Husk Ash(RHA), Eggshell Powder(ESP), Cohession(c), Angle of internal friction(), Optimum Moisture Content(OMC), Maximum Dry Density(MDD), Callifornia bearing Ratio(CBR),

"IMPROVEMENT IN STRENGTH OF BLACK COTTON SOIL BY USING RICE HUSK ASH AND EGGSHELL POWDER", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.115-120, April-2019, Available :http://www.jetir.org/papers/JETIR1904H25.pdf

"IMPROVEMENT IN STRENGTH OF BLACK COTTON SOIL BY USING RICE HUSK ASH AND EGGSHELL POWDER", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp115-120, April-2019, Available at : http://www.jetir.org/papers/JETIR1904H25.pdf