The rapid growth of industrialization encourages researchers to do innovative utilization of waste materials produced from the industries. Considering this, the effort was made to utilize waste materials (non-biodegradable) like fly-ash (FA) and rubber powder (RP) blended with two different types of soil in arbitrary proportions. Two different types of soil were collected i.e.; low plasticity silt (ML) and high plasticity clay (CH) and the properties of virgin soils were determined. The disposal of FA and RP is difficult; almost least to none as they are non- biodegradable. To utilize the waste materials, the soil was partially replaced with these two wastes. The comparison of optimum moisture content (OMC) and maximum dry density (MDD) was investigated accompanying other geotechnical properties like Atterberg limits and free swell index (FSI). In this research, three soil mixes were prepared for the two soil types each having a constant proportion of FA and RP content that included 5%, 10%, and 15% FA and RP for different soil content. The result indicated a decrease in MDD, Atterberg Limits, FSI and increase in OMC and plasticity index value for ML whereas, an increase in Atterberg limits and OMC and a decrease in plasticity index Value, FSI, and MDD for CH.