A?brick?is building material used to make walls, pavements and other elements in?masonry?construction. Traditionally, the term brick referred to unit composed of?clay, but it is now used to denote any rectangular units laid in mortar. A brick can be composed of clay-bearing soil, sand and lime, or concrete materials. Bricks are produced in numerous classes, types, materials, and sizes which vary with region and time period, and are produced in bulk quantities. Two basic categories of bricks are?fired?and?non-fired?bricks.
Block?is a similar term referring to a rectangular building unit composed of similar materials, but is usually larger than a brick. Lightweight bricks (also called “lightweight blocks”) are made from?expanded clay aggregate.
Fired bricks are one of the longest-lasting and strongest?building materials, sometimes referred to as artificial stone, and have been used since circa 5000 BC. Air-dried bricks, also known as?mudbricks, have a history older than fired bricks, and have an additional ingredient of a mechanical binder such as straw.
Bricks are laid in?courses?and numerous patterns known as?bonds, collectively known as?brickwork, and may be laid in various kinds of?mortar?to hold the bricks together to make a durable structure. Source: Wikipedia
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