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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.
Table 2 - Hydraulic Cement – production – Africa and Middle East (thousand metric tons) [2] Country: 2012 2011 2010 2009 2008 2007 2006 2005 2004
Holcim operates four businesses segments: cement, aggregates, ready-mix concrete, and other products, including precast concrete, asphalt, mortar, and other building materials. Originally, the company was established as LafargeHolcim by the merger on 10 July 2015 of Holcim and Lafarge , which had combined sales of CHF 26.7 billion in 2019. [ 3 ]
CRH entered the United States in 1978 by buying Amcor, a concrete products group in Utah which would then form the basis of the company's U.S. division, which is now called Oldcastle Inc. Subsequent large purchases in the US included Callanan Industries, a New York State based aggregates and asphalt producer in 1985.
Holcim is headquartered in Zug, Switzerland, and holds interests in more than 70 countries worldwide. They employ over 63,000 people. [2] Subsidiaries include St. Lawrence Cement (Canada), Aggregate Industries (the UK), and Holcim Apasco (Mexico). The company's products include cement, clinker, concrete, lime, aggregates, and roofing materials. [3]
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.
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.
South Africa is the southernmost country in Africa. It is the 25th-largest country in the world by land area, and with close to 60 million people, is the world's 24th-most populous nation. The World Bank classifies South Africa as an upper-middle-income economy, and a newly industrialised country. [1] [2] Its economy is the largest in Africa ...