Characterization of damage mode II in compression-induced shear mortar prisms by acoustic emission technique

Tóm tắt

Acoustic Emission Technique (AET) has been conducted to classifydamages in cementitious specimens by applying RA method indicated in RILEM TC 212-ACD. However, the disadvantage of this method is that the percentages of damage modes (tensile and shear mode) are not quantified. It is also a topic of interest for recent researchers. This paper presents the compressioninduced shear experiment tests on three cement mortar prisms. After filtering the noise-related signals, RA methodwas executed to individual signalsto determine the damages proportion. The results showeda significant discrepancy between the two modes: tensile mode occupied in the specimens.