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The standard brick sizes in Mesopotamia followed a general rule: the width of the dried or burned brick would be twice its thickness, and its length would be double its width. [ 8 ] The South Asian inhabitants of Mehrgarh also constructed air-dried mudbrick structures between 7000 and 3300 BC [ 9 ] and later the ancient Indus Valley cities of ...
In 2002 the International Institute for Energy Conservation was one of the winners of a World Bank Development Marketplace Award for a project to make an energy-efficient Dutch brick-making machine for home construction in South Africa. By making cheaper bricks that use earth, the project would reduce housing costs while stimulating the ...
Hydraform International Pty Ltd. is a manufacturer of brick and blockmaking machines. It was founded in Johannesburg, South Africa. [1] The company specialises in brick and blockmaking machines and accessories that enable the development of a stabilised soil cement block or a compressed earth block (CEB).
Mudbrick or mud-brick, also known as unfired brick, is an air-dried brick, made of a mixture of mud (containing loam, clay, sand and water) mixed with a binding material such as rice husks or straw. Mudbricks are known from 9000 BCE. From around 5000–4000 BCE, mudbricks evolved into fired bricks to increase strength
Working dimensions is the size of a manufactured brick. It is also called the nominal size of a brick. Brick size may be slightly different due to shrinkage or distortion due to firing, etc. An example of a co-ordinating metric commonly used for bricks in the UK is as follows: [4] [5] [6] Bricks of dimensions 215 mm × 102.5 mm × 65 mm; Mortar ...
In 1972, the union absorbed the Coloured, Malay and Asiatic Building Workers' Union, followed in 1980 by the majority of the Amalgamated Society of Woodworkers of South Africa. This took its membership up to 19,000. [7] In 1991, it was a founding affiliate of the short-lived Federation of Independent Trade Unions. [8]
PPC Ltd, a supplier of cement, lime (material) and related products in southern Africa. It has 11 cement factories and a lime manufacturing facility in six African countries including South Africa, Botswana, Democratic Republic of the Congo, Ethiopia, Rwanda and Zimbabwe. The company is headquartered in Sandton (Johannesburg). [1]
In the making of firebrick, fire clay is fired in the kiln until it is partly vitrified.For special purposes, the brick may also be glazed. There are two standard sizes of fire brick: 229 mm × 114 mm × 76 mm (9 in × 4 + 1 ⁄ 2 in × 3 in) and 229 mm × 114 mm × 64 mm (9 in × 4 + 1 ⁄ 2 in × 2 + 1 ⁄ 2 in). [2]