Effects of Chemical Stabilisation of Eggshells-Lime and Fly-Ash-Cement on the Structural Strength of Subgrade Soil in Rural Roads

Abstract

This study examines the chemical compositions of eggshell powder (ESP) and lime as the soil stabilisers and compared with the compositions of cement and fly-ash to understand the optimal distribution of chemical stabilisers maximizing the bearing capacity and structural integrity of subgrade soil. Two chemical compositions of ESP-lime and fly-ash-cement with 2%, 4%, 6% and 8% of total mass of soil sample were mixed with 6% and 4% constant ratio of lime and cement, respectively.