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Anchor channels, invented by Anders Jordahl in 1913, are steel channels cast flush in reinforced concrete elements to allow the installation of channel bolts for the fastening of components. Anchor channels consist of steel C-shaped channels and anchors (mostly headed studs ) which are connected to the channel by welding or riveting/forging.
Dolosse moulds are in the foreground - Durban, South Africa. Dolosse are normally made from un-reinforced concrete, poured into a steel mould. [1]: 11 The concrete will sometimes be mixed with small steel fibers to strengthen it in the absence of reinforcement. Durban's South Pier with a line of interlocking dolosse, South Africa
Precast concrete is a construction product produced by casting concrete in a reusable mold or "form" which is then cured in a controlled environment, transported to the construction site and maneuvered into place; examples include precast beams, and wall panels, floors, roofs, and piles.
A culvert is a structure that channels water past an obstacle or to a subterranean waterway. Typically embedded so as to be surrounded by soil, a culvert may be made from a pipe, reinforced concrete or other material. In the United Kingdom, the word can also be used for a longer artificially buried watercourse. [1]
The is a list of South African mass media, including newspapers, ... BRICS Africa Channel [3] The Home Channel; Ignition TV; Hilaal TV; Racing240; Community Stations
This is a list of television stations in Africa. Many African countries have various television stations both public and private in nature. The management of these stations vary across countries. In some parts of Africa, radio is a more common form of news and media; see the list of radio stations in Africa for more information.
B ^ The Limpopo River Basin is not wholly located within South Africa, it straddles four countries, Botswana, Mozambique, South Africa and Zimbabwe. [ 1 ] C ^ The Tugela and Vaal drainage basins are linked with the Tugela-Vaal Water Project , an interbasin transfer scheme across the Drakensberg watershed that supplies additional water to the ...
Ethiopia has 20 cement factories which produce mainly OPC and PPC cement. Two other cement factories are in the pipeline. As of 2017, production capacity in Ethiopian, according to the Ethiopian Reporter, [14] has increased to 15 million tonnes per year, but local consumption is only 6 million tonnes per year.