Concrete masonry unit
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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)</ref> in the UK 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.
- Related: Brick
| http://www.ncma.org - National Concrete Masonry As... http://www.ncma.org - National Concrete Masonry Association www.ncma.org - Web |
| http://www.cmacn.org - Concrete Masonry Associatio... http://www.cmacn.org - Concrete Masonry Association of California and Nevada www.cmacn.org - Web |
| How Products Are Made: Volume 3 Concrete Block How Products Are Made: Volume 3 Concrete Block www.madehow.com/Volume-3/Concrete-Block.html - Web |
Gallery for «Concrete masonry unit»
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| Mason Contractors Association of America Mason Contractors Association of America www.masoncontractors.org - Web |
| Concrete Block Association Concrete Block Association www.cba-blocks.org.uk - Web |
| Masonry Institute of America Masonry Institute of America www.masonryinstitute.org - Web |
