ABSTRACT

High-performance fiber-reinforced cementitious composites (HPFRCCs) are short fiber (either metallic and/or polymeric)-reinforced cement-based composites that exhibit strain-hardening and multiple-cracking behaviors in uniaxial tension and bending (Figure 6.1) (Naaman and Reinhardt 2006). Engineered cementitious composite (ECC) is the most significant development in the field of HPFRCC. ECC was originally developed at the University of Michigan (Li 1992). It typically exhibits tensile strain capacity of more than 3%, with spacing between multiple cracks at saturation less than 3 mm and maximum crack width less than 100 μm. Microstructure optimization allows ECC to be made with fiber content less than 2% by volume.