Performance and composition analysis of engineered cementitious composite (ECC) – A review

Micromechanical model based Engineered Cementitious Composite (ECC) can be designed with strain capacity ranging from three hundred to five hundred times compared to conventional concrete. A review on previous research studies conducted on properties of ECC with addition of various mineral admixtures and fibers has been presented in this paper. Effect of water-cement ratio, shape and length of fibers, mixing techniques, temperature and use of fly ash in high volume on properties of ECC has been reported by various researchers. The volume fraction of fibers used in ECC has been ranged at 2%, which produced extensive strain hardening behaviour. ECC has an outstanding performance regarding tensile strain capacity along with multiple cracks. In ECC width of cracks is usually less than 100 μm. Behaviour of ECC is like ductile metal while conventional concrete is brittle in nature.