The brittleness and cracking of conventional concrete have led to the creation of Engineered Cementitious Composites (ECC), which exhibit "metal-like" tensile behavior as the consequence of the formation of numerous micro cracks prior to fracture failure. The use of fiber, super plasticizer and superfine sand significantly affects the performance of ECC, with fiber and superplasticizer’s mainly determining the level of ductility. One significant indicator of the deformation process is the maximum crack width