![]() Patterns are emphasized on a dense, smooth surface, and small irregularities are hidden. It is very effective at resisting rain penetration due to its recessed profile and the tight seal formed by compacted mortar. The following are the most common types of mortar joints:Ĭoncave joint This popular type of joint is formed in mortar through the use of a curved steel jointing tool. ![]() Mortar joints vary not only by their appearance, but also by their water-resistance properties. Some joint profiles accentuate their individual designs, while others merge the bricks and mortar to form a flush, homogeneous surface. Mortar joints in brickwork take up a considerable large amount of a wall's surface area and have a significant influence on the wall's overall appearance. For maintenance, degraded mortar joints need to be renewed by removing the old mortar and applying new mortar, a process known as " repointing". Water penetration is the greatest degrader of mortar, and different mortar joints allow for varying degrees of water-resistance. ![]() ![]() Although good-quality bricks may outlast civilizations, the mortar that bonds them can crack and crumble after a number of years. ![]()
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