The structural design of the masonry is based on the specified compressive strength of the masonry, f'm, which is a function of the compressive strength of the y-unit. Masonry is the art of constructing a structure with brick, stone, or similar material, including mortar plastering, which is often placed, joined and glued together with mortar; the term masonry can also refer to building units (stone, brick, etc. Common masonry construction materials are bricks and building stone such as marble, granite and limestone, cast stone, concrete blocks, glass blocks, and adobe). Masonry is generally a very durable form of construction. However, the materials used, the quality of the mortar and workmanship, and the pattern in which the units are assembled can substantially affect the durability of the overall masonry construction.
A person who builds masonry is called a bricklayer or bricklayer. Both are classified as construction trades. Although most of the following discussions use lightweight, normal-weight concrete masonry as examples, you can generally expect the properties of medium-weight masonry to be somewhere between the two. Therefore, it is important to study the fundamental properties of masonry so that new masonry structures can be effectively designed and built, and the cost of repairing old structures and building new ones is less expensive.
In part, masonry and especially non-reinforced masonry (URM) has mechanical properties such as strength and ductility lower than those of reinforced concrete and steel. Therefore, the bending, shear and support resistance of the masonry, some deformation properties, such as the modulus of elasticity, and the structural behavior of the masonry assembly, determined by contemporary codes and standards, are independent of the density of the concrete masonry unit. The strength of a masonry wall is not completely dependent on the joint between the building material and the mortar; the friction between the interlocking blocks of masonry is usually strong enough to provide great strength on its own.