ABSTRACT
The shear behaviour of masonry walls subjected to in-plane lateral forces is strongly dependent on the quality of the mortar used in the joints and on the strength of the blocks. Specimens S1-FB8 was strengthened with a pre-formed glass fiber reinforced plastic grid and a limestone hydraulic mortar with a nominal strength of 8 MPa in order to simulate a restoration of ancient masonry. The specimens S1-FBSR were prepared by laying a 8 MPa hydraulic mortar as unreinforced plaster. The mortar was reinforced with a dry AR-glass fiber grid with a spacing of 12 mm. The ultimate tensile strength of the fibers was 1500 MPa, and the elastic modulus was 70 GPa, the density was 120 g/m2. Different behaviour was observed in the tests of the specimens S1-Fabric Reinforced Cementitious Matrix-B that were strengthened with an aramidic fiber dry net immersed in a modified cement mortar having a compression strength of 20 MPa.
