Abstract—The conventional concrete has lost its usage in modern days as it does not serve the present needs. Hence to improve the work ability, durability and the ultimate strength of the concrete,High Performance Concrete (HPC) with super plasticizers and pozzolans are used. There are various studies and research that are emerging related to the HPC. This study is mainly concentrated on the durability characteristics of HPC with partial replacement of cement by fly ash. The cement was replaced with 15% by fly ash. Water cement ratio and super plasticizer dosage are kept constant for all mixtures. It was observed that the HPC with 15% fly ash shows markable change in strength and durability characteristics of concrete.