ABSTRACT

This chapter presents results of monotonic and cyclic tensile tests and of monotonic and cyclic single-lap shear tests carried out on Fabric Reinforced Cementitious Matrix (FRCM) composites based on bi-directional carbon and glass grids and on natural hydraulic lime mortar. Bond behavior was investigated on masonry panels strengthened with FRCM composites. Bond tests performed on FRCMs applied on masonry panels showed some typical failure modes, primarily dependent on the reinforcement grid type and on its relative strength: fibers tensile failure or matrix delamination. Tensile tests and single-lap shear tests were performed on FRCM composites based on bi-directional carbon and glass grids and on natural hydraulic lime mortar. FRCM strengthening systems for tensile tests and bond tests were prepared by using the same materials, the same geometry and the same thicknesses, in order to compare the results. The loaded end of FRCM reinforcement, impregnated with epoxy resin, was clamped between two steel plates by using glue and bolts.