ECC = Engineered Cementitious Composite, In 1992, Professor Victor C.
Custom Sheet Metal Fabrication
Li from the University of Michigan proposed that the matrix is cement slurry or mortar (note: does not contain coarse aggregates, similar to UHPC), with fibers (usually PVA polyvinyl alcohol fibers, but also PE polyethylene fibers) as reinforcement materials, designed through micro mechanics and fracture mechanics principles – this sentence is key.
ECC is not simply “adding more fibers to concrete”, but a material system designed in reverse from the mechanical parameters of fibers, matrix, and interface, which is also the origin of the term “Engineering Design”.
.