Subgrade materials are expected to have basic desirable characteristics related to strength, rnstiffness and swelling. If these properties are not fulfilled, engineers are expected to come uprnwith ground improvement methods. The growing cost of traditional stabilizing agents and thernneed for the economical utilization of industrial and agricultural wastes for beneficialrnengineering purposes have prompted an investigation into the stabilizing potential of wasternceramic powder in highly expansive clay soil. This research work is aimed to evaluate thernsuitability of waste ceramic powder for stabilization of expansive clay soil. The preliminaryrninvestigation of the soil to be stabilized shows that it belongs to A-7-5 class of soil in thernAASHTO soil classification system. Soils under this class are generally of poor engineeringrnuse. Atterberg limits, free swell, free swell index, free swell ratio, compaction and CBR testsrnwere used to evaluate properties of stabilized soil. The soil was stabilized with waste ceramicrnpowder in stepped concentration of 5%, 10%, 15%, 20%, 25% and 30% by dry weight of thernsoil. All stabilized soil samples were also cured for 7 days for Atterberg limits, compactionrnand CBR tests. rnAnalysis of the results shows that slight improvement on the geotechnical properties of wasternceramic powder stabilized soil. Waste ceramic powder reduces plasticity index, swelling andrnCBR swell and it increases MDD with decrease in OMC and CBR. Curing has anrninsignificant effect on the geotechnical properties of waste ceramic powder stabilized soil.rnFrom this study it was found out that waste ceramic powder stabilized soil do not showrnsignificant change for both index and strength property. rnAdditional study is also incorporated as a supplementary work to investigate the effect ofrnapplying 3% lime as an activator in combination with 15% waste ceramic powder on therngeotechnical properties of the soil for uncured and cured soil samples. The results indicaternthat lime in combination with waste ceramic powder is suitable for improving the plasticityrnindex, swelling and CBR. The strength values (CBR) also increased with curing ages, thusrnindicating that the blend has a potential for time-dependent increase in strength that willrnreduce the quantity of stabilizer needed for the construction of roads over the expansive soil.rnTherefore, this study shows that lime in combination with/plus waste ceramic powder can berneffectively used to improve expansive soils with low soaked CBR value and high plasticity.