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Experimental characterization of traditional mortar and polyurethane foam in masonry walls

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Document pages: 13 pages

Abstract: Masonry is a kind of composite material mainly used in architecture. It has many advantages, including significant compressive strength, thermal inertia and aesthetics. One disadvantage of masonry is mainly related to the insufficient shear strength caused by the poor bearing capacity and ductility of the mortar used. This aspect is crucial in earthquake areas. The performance of polyurethane foam as adhesive for construction of thin slit brick walls is studied in this paper. Firstly, the members are characterized, then the laboratory uniaxial test is carried out on the masonry wall, and the shear test is carried out on three members. In addition, the performance of foam brick wall and traditional mortar masonry is also compared, because the joint type is v.ries and the arrangement of the holes of the bricks varies with respect to the direction of the applied load. Results provide indications on which adhesive has to be adopted for masonry buildings in reference to the site of construction (i.e., seismic hazard).

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