Engineered Cementitious Composite (ECC), also called bendable concrete, is an easily molded mortar-based composite reinforced with specially selected short random fibers, usually polymer fibers.
If a cementitious material is designed/developed based on micromechanics and fracture mechanics theory to feature large tensile ductility, it can be called an ECC.
Therefore, ECC is not a fixed material design, but a broad range of topics under different stages of research, development, and implementations. The ECC material family is expanding. The development of an individual mix design of ECC requires special efforts by systematically engineering of the material at nano-, micro-, macro- and composite scales.
1.Tensile properties superior to other fiber reinforced composites.
2. Superior corrosion resistance.
4. ECC can deform without catastrophic failure.
TYPES OF ECC:-
1. Light weight (i.e low density)
2. Self-compacting concrete
3. Sprayable ECC
4. Extrudable ECC
1. The Mitaka Dam near Hiroshima was repaired using ECC in 2003.
2. In 2003, an earth retaining wall in Gifu, Japan, was repaired using ECC.
3. A 225-mm thick ECC bridge deck on Interstate 94 in Michigan was
completed in 2005.