Reinforcement with GFRCM of structural masonry elements: experimental studies of in scale models

The present work reports the results obtained from laboratory tests made upon in scale models of masonry walls and of a cross vault reinforced with a new composite materials and subjected to different load conditions; this new composite, alternative to FRP, is applied in overlays to the surface of masonry structural members and consists of a mesh of glass fabric embedded in a cement-based matrix, called GFRCM (Glass Fiber Reinforced Cement Matrix). This technique allows attaining a twofold goal: obtaining the desired strength, specifically, guaranteeing high tensile resistance, while at same time assuring greater compatibility between the masonry and the composite. The experimental tests proposed highlight the improvement of the mechanical behaviour of such reinforced structural elements towards external forces or actions which may cause damage or sudden collapse due to unforeseen seismic events or sagging of supports.