Abstract
The global and local mechanical bond behaviours of textile-reinforced cementitious (TRC) matrix composites bonded to masonry elements were investigated in this study. Single-lap shear bond tests were performed for six different configurations: two matrices, two textiles, and two reinforcement ratios. These composites were instrumented with distributed fibre optic sensors (DFOS), acoustic emission (AE) sensors, and digital image correlation (DIC). The DFOS were used to measure the evolution of the local internal strains of the TRCs before, during, and after the appearance of cracks. The AE sensors were used to assess the damage mechanisms of the TRC bonded to the masonry. The crack widths were measured using DIC. Combining these measurement techniques facilitated the assessment of the effects of the matrix, textile, and reinforcement ratio on the effective bond length of the TRC-to-masonry prisms. The results obtained from the TRC-to-masonry shear bond tests were then compared with the results of the tensile tests of the TRC composite to highlight the effect of the boundary conditions on crack widths.
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