The effect of surface preparation on the bond interface between FRP sheets and concrete members

By H. Toutanji, G. Ortiz. 2001

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Peel and Shear Fracture Characterization of Debonding in FRP Plated Concrete Affected by Moisture (2006, methodology): “Mechanical abrasion was chosen over other means, such as water jetting, sanding, and grinding, because it has been determined Chajes et al. 1996; Lorenzis et al. 2001; Toutanji and Ortiz 2001 that this method would provide maximum bond quality among all others.”
Analysis of FRP–concrete debonding via boundary integral equations (2008, background): “Moreover, mode II fracture energy is usually higher than for plain concrete, due to penetration of adhesive in the concrete external layer, so depending also on adopted adhesive characteristics and concrete surface preparation before adhesive application [64,44,58].”
Accelerated ageing behaviour of the adhesive bond between concrete specimens and CFRP overlays (2011, background): “According to several authors, a substantial roughness of the cementitious substrate promotes mechanical anchoring of the polymer adhesive and tends to increase the contact surface area, both resulting in a higher bond strength [14,28,29], although other factors can be involved such as the presence o”