Abstract
Masonry is a composite material largely used in construction. It exhibits several advantages, including significant compressive strength, thermal inertia, and aesthetic beauty. A disadvantage of masonry is mainly related to the inadequate shear strength due to the poor capacity and ductility of the adopted mortar. This aspect is crucial in seismic areas. In this paper, the behavior of polyurethane foams, used as adhesives for the construction of thin joints brick masonry walls, has been investigated. First, the characterization of components was carried out, followed by laboratory uniaxial tests on masonry walls and shear tests on triplets. Moreover, a comparison of the behavior of the foam‐brick walls with respect to the traditional mortars masonry was carried out, as the type of joints varies 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).
Highlights
Masonry is one of the oldest building systems that characterized the history of the structures
Advances in Materials Science and Engineering kind of joints, polyurethane foams can be used to make up a wall. ey are more deformable and ductile and show a higher damping capacity than traditional mortars. is aspect makes the foams more performable in seismic prone areas; this characteristic should be verified with respect to traditional mortars, as aimed in the present paper for thin joints brick masonry walls
Several studies have been conducted on the use of foams as filler for sandwich panels [17,18,19]. e cores have been realized with different kinds of polyurethane foams and their mechanical characteristics have been compared
Summary
Masonry is one of the oldest building systems that characterized the history of the structures It consists in the coworking of two constituents, such as the brick and the mortar, arranged in a more or less regular texture, the role of the mortar joints is currently slightly investigated in the scientific literature. An explanation for this is attributable to the common responsibility of the masonry structural members: the mechanical performance of the mortar is less important when compared to the compressive strength of the brick (natural or artificial). Is aspect makes the foams more performable in seismic prone areas; this characteristic should be verified with respect to traditional mortars, as aimed in the present paper for thin joints brick masonry walls Advances in Materials Science and Engineering kind of joints, polyurethane foams can be used to make up a wall. ey are more deformable and ductile and show a higher damping capacity than traditional mortars. is aspect makes the foams more performable in seismic prone areas; this characteristic should be verified with respect to traditional mortars, as aimed in the present paper for thin joints brick masonry walls
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