A Study on Bond Properties between NSC Substrate and UHPC

Ultra-high performance concrete (UHPC) is suitable for the durable rehabilitation and strengthening of deteriorated normal strength concrete (NSC) structures due to its excellent characteristics, such as superior compressive strength, high tensile capacity, and excellent bond properties. However, a successful repair depends on whether the UHPC-NSC interface can provide good bonding performance under various applied loads…

Assessment of Bond Behavior of Post-Installed Bundled Reinforcement using Finite Element Method

Post-installed bundled reinforcement is used to connect the existing concrete with new concrete structures when the post-installed single reinforcement is not feasible. In this study, the assessment of the bond behavior of the post-installed bundled reinforce-ment is carried out using the finite element method (FEM). The study focused on evaluating the bond strength, and failure…