Analysis of crack formation pattern in Engineered Cementitious Concrete

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.It is commonly accepted that a crack width is kept under 100 μm, it falls into the harmless category.These results suggest that ECC is a material used in concrete crack repair and has superior properties compared to conventional concrete.Thecrack width control and mechanical properties of ECC are important factors in its use in concrete crack repair.Overall, the research on ECC crack patterns aims to enhance the durability and performance of concrete structures by comprehensively analyzing the formation and evolution of cracks in ECC materials.