In the United States, a concrete masonry unit (CMU) – also called concrete block, cement block, and foundation block – is a large rectangular brick used in construction. Concrete blocks are made from cast concrete, i.e. Portland cement and aggregate, usually sand and fine gravel for high-density blocks. Lower density blocks may use industrial wastes as an aggregate. Those that use cinders (fly ash or bottom ash) are called cinder blocks in Canada, the US and New Zealand, breeze blocks (breeze is a synonym of ash) in the UK, hollow blocks in the Philippines and are also known as besser blocks or bricks in Australia. Clinker blocks use clinker as aggregate. In non-technical usage, the terms cinder block and breeze block are often generalized to cover all of these varieties. Lightweight blocks can also be produced using aerated concrete.
Read more about Concrete Masonry Unit: Sizes and Structure, Uses, Structural Properties, Gallery
Other articles related to "units, concrete masonry unit, concrete, masonry, unit":
... Building Code 2006 states that separation between dwelling units and between dwelling units and public and service areas must achieve STC 50 (STC 45 if field tested) for both airborne and ... is used, this requirement may not apply to all dwelling units ... STC 65 to 70 walls are often designed into luxury multifamily units, dedicated home theaters, and high end hotels ...
... This gallery shows images of 200 series (190 x 190 x 390 full blocks) modular concrete blockwork used in residential construction in a cyclonic region of Northern Australia ... Typically there is a vertical reinforced (N12 or N16 rebar) concrete core at every corner, alongside each opening and at 600 mm (24 in) centers elsewhere ... Corefill concrete is typically 15 MPa (2,200 psi) compressive strength ...
... the point of view of material modelling, masonry is a special material of extreme mechanical properties (with a very high ratio between strength in compression and in tension), so ...
... Rubble masonry is rough, unhewn building stone set in mortar, but not laid in regular courses ... appear as the outer surface of a wall or may fill the core of a wall which is faced with unit masonry such as brick or cut stone ...
... The farm also has a two-story masonry granary with frescoes, a fruit-drying shed, and two single hay racks ... The property also consists of a partially masonry stable with a hayloft dating from 1832, a masonry barn, a masonry granary, a wooden beehive, and a wayside cross ... A masonry chapel-shrine dedicated to the Sacred Heart stands in the hamlet of Grapce ...
Famous quotes containing the words unit, concrete and/or masonry:
“During the Suffragette revolt of 1913 I ... [urged] that what was needed was not the vote, but a constitutional amendment enacting that all representative bodies shall consist of women and men in equal numbers, whether elected or nominated or coopted or registered or picked up in the street like a coroner’s jury. In the case of elected bodies the only way of effecting this is by the Coupled Vote. The representative unit must not be a man or a woman but a man and a woman.”
—George Bernard Shaw (1856–1950)
“Total loyalty is possible only when fidelity is emptied of all concrete content, from which changes of mind might naturally arise.”
—Hannah Arendt (1906–1975)
“I learn immediately from any speaker how much he has already lived, through the poverty or the splendor of his speech. Life lies behind us as the quarry from whence we get tiles and copestones for the masonry of today. This is the way to learn grammar. Colleges and books only copy the language which the field and the work-yard made.”
—Ralph Waldo Emerson (1803–1882)