Fiber-reinforced composite materials are more and more common in structural strengthening of existing masonry buildings. They generally lead to more light-weight and reversible solution than the traditional techniques used for similar purposed. However, adhesion between composite materials and masonry often controls the effectiveness of the intervention. Starting from an experimental campaign, the paper is devoted at calibrating a relationship between the bonding strength and the key mechanical properties of both composites (either polymer- or cement-based) and masonry.
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