ABSTRACT
Abstract This chapter summarizes some state-of-the-art basic understanding on fiber reinforced concrete. Toughening mechanisms in fiber reinforced cementitious composites have been summarized based on several experimental observations. Some important experimental findings and interesting aspects of toughening mechanisms are presented. The effect of fiber on hindering the strain localization primarily depends on factors such as the fiber-matrix interface as well as volume, length and orientation of fibers. A series of theoretical models for describing these factors have been briefly discussed. Some current methods for characterizing toughness of fiber reinforced cementitious composites have been reviewed.
