Bond of CFRP strips embedded in lime-based mortar

The study of the local aspects connected to the application of the bed joint reinforcement technique by using CFRP (Carbon-Fiber Reinforced Polymer) strips in compressed brick masonry wall is presented. The intervention consists in embedding the strips into pre-cut mortar joints, and refilling them with suitable mortar (lime-based). Results allowed defining the adhesion and the friction phases of the bonding phenomena and to characterize the anchoring development length. On the basis of the direct experimentation, available analytical models are validated for design of anchoring details.