In order to guarantee the stability and safety of infrastructure erected on or within clayey soils, engineering design, construction, and risk assessment all depend on an understanding of the dynamic behavior of these soils. To assess the impact of lime on the dynamic properties of clayey soils proper testing and evaluation should be conducted before implementing it in engineering or construction projects. The objectives of the current study are to explore the impact of lime on the dynamic properties of clayey soils; particularly the shear modulus and damping ratio. Prior research has mostly examined how lime affects the physical, mechanical, biological, and index characteristics of soil; little attention has been paid to how lime affects the dynamic features of clayey soils. In the present study, various percentages (0 to 10%) of lime were blended with clayey soil and the testing was conducted on the Resonant Column Apparatus at the four confining pressures (90 kPa, 135 kPa, 180 kPa and 225 kPa). According to the experimental findings, as the amount of lime content rises, the damping ratio and shear modulus progressively increase. Conversely, when the confining pressure rises, the shear modulus rises as well, but the damping ratio falls as a result. Based on the findings, it can be deduced that using an ideal lime concentration raised the damping ratio and shear modulus, increasing resilience against seismic damage.

 Keywords: Lime, Shear modulus, damping ratio, resonant column