Self-compacting concrete (SCC) can consume low levels of cement and more Supplementary cementitious materials. SCC is a viable technique conserves energy and achieves strength more than conventional concrete. This work is focused on the fresh and hardened properties of Self-compacting concrete (SCC) replacing cementitious material by weight with the optimized percentages of fly ash. Self-compacting concrete mix is designed at water-to-binder ratio of 0.36 in all mixtures and 497 kg/m3 of binder content with Fly Ash as partial replacement of cement (30% by weight). Compressive and split tensile strengths at the age of 7 and 28 days are determined with the use of plastic electronic waste as partial replacement of fine aggregate up-to 40%. Fresh property i.e., workability of selfcompacting concrete mixtures is performed with slump flow diameter, V-funnel flow time and L-box height ratio. The strength values indicate the reduction but satisfying the design mix criteria up to 30% replacement for sand. Hence Plastic electronic waste can be easily replaced up to 30% in SCC for good workability and strength. High Impact Polystyrene aggregate in concrete is the suitable substitute of sand for waste disposal serving an economic purpose. © IAEME Publication.