PSI - Issue 64

Angelo Savio Calabrese et al. / Procedia Structural Integrity 64 (2024) 1832–1839 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

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• The use of toughened adhesive for bonding FRP in strengthening/repair applications of existing structures can led to higher bond capacity of the externally-bonded reinforcement with respect to un-toughened ones. This is attributed to a higher fracture energy and a more efficient stress transfer mechanism. • The bond-slip cohesive behavior of toughened adhesives can be characterized by an idealized tri-linear law, associated with high fracture energy. This results in higher strain absorption capacity. References Achillopoulou, D.V., Kosta, A., Stamataki, N.K., Montalbano, A., Choffat, F., 2024. Efficiency of CFRP Strengthening Measures for Reinforced Concrete Structural Members Using Toughened Epoxies. Construction Materials 4, 173 – 193. Al-Zu'bi, M., Fan, M., Anguilano, L., 2022. Advances in bonding agents for retrofitting concrete structures with fibre reinforced polymer materials: A review. Construction and Building Materials 330, 127115, Bagheri, R., Pearson, R.A., 1996. 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