21-05-2017, 12:01 PM
please help me,its very urgent for me.I will try to make a presentation
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hollow bricks ppt
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please help me,its very urgent for me.I will try to make a presentation
27-05-2017, 01:54 PM
A brick is the building material used to make walls, floors and other elements in masonry construction. Traditionally, the term brick refers to a unit composed of clay, but is now used to designate any rectangular unit placed in mortar. A brick may consist of clay soil, sand and lime, or concrete materials. Bricks occur in numerous classes, types, materials and sizes that vary with region and time period, and are produced in bulk quantities. Two basic categories of bricks were fired and bricks without combustion. Block is a similar term that refers to a rectangular building unit made up of similar materials, but is usually larger than a brick. Light bricks (also called light blocks) are made from expanded clay aggregate.
Lighted bricks are one of the most durable and strongest building materials, sometimes referred to as artificial stone, and have been used since circa 5000 BC. Air-dried bricks, also known as mud bricks, have a history older than cooked bricks, and have an additional ingredient of a mechanical binder such as straw. Bricks are placed in courses and numerous patterns known as bonds, collectively known as bricks, and can be placed in various types of mortar to hold the bricks together to make a lasting structure.
Hollow bricks
![[Image: clay-hollow-brick.png]](http://www.btiles.com/images/clay-hollow-brick.png)
Hollow bricks are lighter and easier to handle, and have different thermal properties than solid bricks. The cut bricks are hardened by drying for 20 to 40 hours at 50-150 ° C before being turned on. The heat for drying is often the residual heat of the furnace.
European-style extruded bricks or blocks are used in a single wall of construction with finishes applied both inside and outside. Its numerous voids comprise a greater proportion of the volume than the solid thin walls of baked clay. Such bricks are made in widths of 15, 25, 30, 42 and 50 cm. Some models have very high thermal insulation properties, making them suitable for zero energy buildings.
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