No abstract

This study is mainly focused on the durability and strength characteristics of different concrete mix with partial replacement of cement by fly ash (FA) and silica fume (SF). Firstly the cement was replaced with FA (20% & 30%) in which 30% FA replacement performed well then the cement content was further replaced with SF (10% & 15%) in which further replacement with 15 % of silica fumes performed well .Water cement ratio was kept constant for all mixtures. And further replacement is done by RCA (Recycled coarse aggregate) with the natural aggregate to make the system more eco friendly and cheap.