The bond behavior of carbon fiber–reinforced polymer (CFRP) sheets attached to concrete surface subject to mixed-mode I/II loading through single lap-shear tests is assessed. A 63 concrete prism specimens of were prepared through externally bonded reinforcement (EBR) and externally bonded reinforcement on grooves (EBROG) techniques, using CFRP sheets of constant width and bond lengths. To instigate mode I loading, 31 of the specimens were tested in a manner that the loaded end of FRP sheets were angled inward to ; while in 24 of the specimens, the FRP strips were angled outward 2.4–4.7 degrees. By applying a noncontact digital image correlation (DIC) technique, load-slip responses of both EBR and EBROG joints were obtained and are discussed in detail. The failure criteria for CFRP sheets attached to a concrete substrate applying different bonding techniques subject to mixed-mode I/II loading are developed based on the experimental results. In general, it was observed that the EBROG technique in mixed-mode I/II loading improves the FRP-concrete bond strength by delaying or fully eliminating the inappropriate debonding failure mode.
Simultaneous Effects of Microsilica and Nanosilica on Self-Consolidating Concrete in a Sulfuric Acid Medium
Fibre-Reinforced Polymer Efficiency in Square Columns with Different Corner Radi
Computer Simulation-Based method to Predict Packing Density of Aggregates Mixture
Simulating FRP Debonding From Concrete Surface in FRP Strengthened RC Beams: A Case Study
آدرس: اصفهان _ خیابان چهارباغ خواجو _
نبش بنبست صنایع(38) _ ساختمان 113 _ واحد4.
کدپستی: 8143944751_ تلفن تماس: 0313220706