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Table 4 - Hydraulic Cement – production – Europe and Central Eurasia (thousand metric tons) [4] Country: 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 Albania 2,000 1,800 1,300 1,110 918 889 600 575 530 578 348 — 180 106 84 200 200 Armenia 438 422 488 467 770 722 625 605 501 384 355 275 219 287 314 ...
Ghana Cement also known as Ghacem was founded by the Government of Ghana in collaboration with Norcem AS of Norway, on 30 August 1967. [ 1 ] [ 2 ] It is the largest producer of cement in Ghana. Ghacem has since inception produced more than 30 million tons of cement .
It started production in 2002 with annual production of 700,000 tonnes of cement and was inaugurated by former President John Kufuor of Ghana in 2004. [1]The company in February 2014, completed a 2.5 km rail siding connecting it to the Togo Railway network, giving access to the port of Lomé, Togo, for easy delivering of clinker for cement production.
"Ghacem" is same as "Ghana Cement", and does not have 97% market share anymore because Buipe plant has been built, and is not really a subsidiary of Scancem, because Scancem is owned by Heidelberg Cement, and has two plants in Ghana : one in Tema, which was upgraded in November 2012 from 1.2 million tons per year to 2.2 Mton/year, and one in ...
By far the most common type of cement is hydraulic cement, which hardens by hydration of the clinker minerals when water is added. Hydraulic cements (such as Portland cement) are made of a mixture of silicates and oxides, the four main mineral phases of the clinker, abbreviated in the cement chemist notation, being: C 3 S: alite (3CaO·SiO 2);
In June 2021, Ghanaian businessman Ibrahim Mahama's company Dzata Cement started commercial production after the completion of phase one of the Dzata Cement plant. [4] The company is the first wholly Ghanaian owned cement company. The first phase of the company was projected to make an annual production of 1.2 million tonnes.
The method of making cement from limestone (CaCO 3) and low-silica bauxite (Al 2 O 3) was patented in France in 1908 by Bied of the Pavin de Lafarge Company. The initial development was as a result of the search for a cement offering sulfate resistance. The cement was known as "Ciment fondu" and "Ciment électro-fondu" in French. [2] [3]
Roman concrete was superior to other concrete recipes (for example, those consisting of only sand and lime) [1] used by other cultures. Besides volcanic ash for making regular Roman concrete, brick dust can also be used. Besides regular Roman concrete, the Romans also invented hydraulic concrete, which they made from volcanic ash and clay. [2]