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

This study examines the chemical compositions of eggshell powder (ESP) and lime as soil stabilisers compared with cement fly-ash to understand optimal distribution maximising bearing capacity structural integrity subgrade soil. The different proportions (2%, 4%, 6% 8% total mass) were mixed a fixed proportion (6% analyse optimum integrity. Similar (4% comparative effects ESP-lime fly-ash-cement on stability. samples collected from three points unpaved roads in Ganderbal district Jammu & Kashmir State India that experiences seasonal variations resulting uneven moisture throughout year. CBR tests both treated (chemical stabilisation) untreated soils performed followed code practices Indian standards is IS: 2720 1985. combination 4% ESP resulted highest value at 19.06%; had 18.73%. increase supports pavement structure less thickness reduction budgetary allocation for road construction, maintenance rehabilitation operations.