Study of the Bond Capacity of FRCM- and SRG-Masonry Joints

Fiber-reinforced cementitious matrix (FRCM) and steel-reinforced grout (SRG) have been increasingly applied as externally bonded reinforcement to masonry members in the last few years. Unlike fiber-reinforced polymer (FRP), FRCM SRG good performance when exposed (relatively) high temperature compatibility with inorganic substrates, they can be wet surfaces at (reasonably) low temperatures. Although numerous studies investigated mechanical properties bond of various SRG, new composites developed recently, their still needs assessed. In this study, behavior three one composite a substrate is investigated. Sixteen single-lap direct shear tests (four for each composite) are performed. The studied comprised layer carbon, PBO (polyparaphenylene benzobisoxazole), or alkali-resistant (AR)-glass bidirectional textile embedded within two cement-based matrices. unidirectional stainless-steel cord lime-based matrix. results show peculiar failure mode composite. Based on these results, carbon modeled solving differential equation trilinear cohesive material law (CML).