To Study The Behavior Of Interlocking Of Masonry Units/Blocks

The word -masonry is a general term that applies to construction using hand-placed units of clay, concrete structural clay tile, glass block, natural stones and the like. The term masonry also refer to the units themselves. The common materials of masonry units are brick, stone, marble, granite, travertine, limestone, cast stone, concrete block, glass block, stucco, and tile. Masonry unit are bound generally with a highly 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 significantly affect the durability of the overall masonry construction. .Mainly the weakest part of a masonry wall is the mortar joint, as the substitution of lime for aggregate reduces the overall strength of the joint. The need to butter and precisely fit each block necessitates the use of skilled, and typically highly paid, masons. Also, the mortar used to butter the units often hardens on the inside of openings within the blocks, preventing or hindering the insertion of insulation and/or reinforcements within the openings. One solution to the lack of strength of mortar joints has been to dry stack the masonry units. However, dry stacking of walls is not without drawbacks. First, like the staking of mortar walls, care must be taken to ensure that the units are properly aligned with one another. This can be a painstaking process that greatly increases the time required to build such a wall. Second, the lack of motor in the joints between units allows air to easily pass through the joints and requires that a skin or other air barrier be used in connection with the walls. Third, the lack of mortar to hold the units in horizontal alignment make the use of many additional reinforcements, such as steel rebar, stabilizers, or the like, absolutely necessary in these types of walls. Therefore, there is a need for a masonry unit and masonry system that allow structures to be dry stacked without mortar, that allows masonry units to be quickly and accurately aligned during stacking, that does not require the use of separate stabilizers or other means for preventing deflection of the structure formed thereby, that produces substantially straight and stable walls, that retards the flow of air from one face of the wall to the other, that may be manufactured of a mixture of concrete and lightweight aggregate, and that will readily accept plaster or mesh substrates upon its outside surfaces without the need for sanding or special treatment. One such unit is the Interlocking Masonry Unit/Block'. This work examines the Compressive Strength Property of Interlocking Masonry Units/Blocks' and compares it with strength behavior of other masonry units. The increase in strength w.r.t. the concrete masonry hollow is by 20% and w.r.t. the brick is by 40%. Besides, the increase in compressive strength is also witnessed when compared with the interlocking features. Interlocking mortar increases strength by 30% w.r.t. the prism without interlocking mortar. Further cost saving is achieved because the simplicity with which the blocks can be laid and aligned reduces the number of high wage skilled masons required on a construction project. When compared to convention masonry block construction, interlocking blocks, which are dry assembled, save a great deal of mortar Because of the ease and economy with which interlocking block walls can be built, load bearing walls can be used where infill walls would normally be placed, thereby providing both additional strength and load bearing ability to accept future additions to the building. Interlocking block construction techniques can be used for everything from single to multi-story construction.