THE EFFECT OF UTILIZING SILICA FUME AND EGGSHELL ASH ON THE GEOTECHNICAL PROPERTIES OF SOFT KAOLIN CLAY

The application of chemical stabilizer in soil stabilization can effectively reduce the negative environmental impact construction industry. However, soft clay remains a challenge due to costly and non-eco-friendly materials such as cement lime. This research demonstrates combination SF ESA stabilizing kaolin soils, based on basic engineering properties undrained shear strength (USS). Its effect was studied via inclusion replacement material at 2, 4 6% (by weight dry soil) substitutions 3, 6 9% content). result shows considerably lower specific gravity (4.9% reduction), reduced plasticity index (PI)(48.4% decreased maximum density (MDD) (5.5% increased optimum moisture content (OMC)(8.7% increment), higher USS (68.8%). In conclusion, combinations agents successfully enhance opening route low cost eco-friendly stabilization.