Concrete is good in compression but if any type of strain applied to it, it starts to fail. Where the steel is good tension. It can bear the deflection up to its elastic limits. Cementitious Composites abbreviated as ECC. This material is capable to exhibit considerably enhanced flexibility. An ECC has a strain capacity of more than 3 percent and thus acts more like a ductile metal rather than like a brittle glass. This project is based on the behavior of engineered cementitious composited (ECC) made by using cement OPC 53, Polypropylene fibers, silica sand, superplasticizer, and water. As for research, Polypropylene fibers are used with cementitious up to 2% to evaluate the optimum amount of fiber on which we can find the maximum compressive, tensile and flexural strength. For this research work, M20 grade concrete is using and tests will conduct for proportions of ECC concrete replacement with normal concrete of 0, 15 %, 20% and 25% (with total volume).ECC concrete can be double the cost as compared to conventional concrete but as it can amplify the duration of structure, it will be less costly than the conventional concrete.