Up to the middle of the last century the main building material was masonry, that is why in most countries there are many masonry buildings and many of these have great historical or social value.
These buildings, located in seismic areas, due to their age are deteriorated by environmental and human factors. This combination of factors causes a very alarming situation that causes a growing interest toward a new strengthening system. Researchers are orientated toward a less invasive and reversible system possibly avoiding resin and
organic materials.
Thanks to recent applications, especially on historical buildings, it was possible to realize a strengthening system based on application of FRP grid and mortar matrix (FRG). Much experimentation was conducted to test the effectiveness of this technology on different kinds of masonry.
The present paper resumes the latest tests carried out by the University of Naples on different masonry panels tested under diagonal compression.
Experimental campaign investigated preliminarily on material properties of based component from bricks to reinforcing mortar. The experimental results confirmed the effectiveness of the investigated strengthening technique to increase the panels shear strength and validated the effectiveness of this reinforcing sysTem on different kinds of masonry.
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