ABSTRACT
From this research it became clear that self-healing is possible, but the crack faces should be close together. In other words, the crack width should not be too large.
2.2 Keeping crack width small
The group of prof. Li (Li, 2003) has developed Engineered Cementitious Composites (ECC). When an ECC structural element is loaded (flexure or shear) to beyond the elastic range, the inelastic deformation is associated with microcracking. The microcrack width is dependent on the type of fiber and interface properties. However, it is generally less than 100 micron when PVA fiber is used.
