HPFRCC(High performance fiber-reinforced cementitious composite) shows the inhibit of cracks within the cement matrix, and formed a lot of multiple cracks. For the effective design and evaluation of HPFRCC, according to the different material characte...
HPFRCC(High performance fiber-reinforced cementitious composite) shows the inhibit of cracks within the cement matrix, and formed a lot of multiple cracks. For the effective design and evaluation of HPFRCC, according to the different material characteristics that makes a study of the fiber and cement matrix interaction between the behaviors and characteristics of the destruction is needed. Characterization of AE (Acoustic Emission) can be demonstrated the micro damage which it is not discovered from visual observation, and it become known to an advantage that was clearly discriminated from the existing methods. In this study, the correlations between AE signal and result of the direct tensile response of HPFRCC. For these purpose, three kind of fiber were used: PET2.0%, PET1.5+PE0.5%, PET1.5%+PVA0.5%. The results show the direct tensile response of HPFRCC, PET-PE specimen has multiple cracks and high strength than specimens with PET fibers. According to the results of test, the AE technique is a useful method in damage assessment of HPFRCC under direct tensile loading.