What is brick?
Brick is a building material manufactured by moulding clay or loam into shape and then firing (sintering) it at high temperatures in a kiln. It is one of the oldest building materials in the world and has formed the foundation of structures, facades, and pavements for thousands of years.
Composition and properties
Brick consists primarily of clay, supplemented with sand and sometimes lime. The firing process at temperatures between 900 and 1200 degrees Celsius gives the brick its hardness, durability, and colour. The colour ranges from light yellow to dark red and brown, depending on the type of clay and the firing temperature. Brick is frost-resistant, fire-retardant, and offers good thermal and acoustic insulation properties.
Application
Brick is used extensively across the construction industry. The most common applications include load-bearing walls, interior partitions, facade cladding, and paving. In Dutch and Northern European building traditions, brick plays a particularly significant role: the vast majority of housing is constructed in brickwork. Additionally, brick is used for chimneys, garden walls, arches, and decorative architectural elements.
Types of brick
Several types of brick exist, each suited to specific applications. Extruded bricks have a regular shape and are machine-produced. Hand-moulded bricks are formed in moulds and have a more irregular appearance. Clinker bricks are fired at particularly high temperatures, making them extremely hard and ideal for paving. Glazed bricks feature a glaze layer for decorative or water-repellent purposes.
History
The use of brick dates back to approximately 7000 BC in the Middle East. In Northern Europe, brick has been widely used since the 12th century, when monasteries began local brick production. The Brick Gothic style shaped entire cities along the Baltic coast.
Related terms
- Masonry
- Clay
- Clinker
- Mortar joints
- Cavity wall
- Facade cladding
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