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Derba MIDROC Cement: MIDROC: 2012 [1] Habesha Cement: Habesha Cement S.C. 2008 [2] Lemi National Cement Factory: West China Cement East African Holding Company 2024 [3] [4] Messebo Cement Factory: Endowment Fund for the Rehabilitation of Tigray: 1997 [5] Mugher Cement Enterprise: Ethiopian government: 1984 [6]
Many depend on circumstances. A major component is cement, which has its own environmental and social impacts and contributes largely to those of concrete. The cement industry is one of the main producers of carbon dioxide, a greenhouse gas. [2] Concrete causes damage to the most fertile layer of the earth, the topsoil.
Africa and the Middle east; a continental Overview of Environmental Issues. Santa Barbara: ABC-CLIO. Maddox, G.H. (2006). Sub-Saharan Africa: An environmental history. Santa Barbara, CA: ABC-CLIO. McCann.J.C.(1990). "A Great Agrarian cycle? Productivity in Highland Ethiopia, 1900–1987," Journal of Interdisciplinary History, 20:3, pp. 389 ...
In the Awash basin in central Ethiopia floods and droughts are common. Agriculture in the basin is mainly rainfed (without irrigation systems). This applies to around 98% of total cropland as of 2012. So changes in rainfall patterns due to climate change will reduce economic activities in the basin. [5] Rainfall shocks have a direct impact on ...
For many years, lead cell batteries were destroyed there and the lead was extracted, leaving the untreated cases on site. An environmental assessment showed that the site was contaminated due to the presence of heavy metals, lead and hydrocarbon pollution. Cement based S/S was employed to successfully remediate 600 tonnes of contaminated soil. [10]
Another problem is that the environmental issues in Ethiopia have no (or a very weak) lobby and the current restrictive socio-political context for public engagement has detrimental effects on environmental education, awareness, advocacy and the building of an engaged and empowered civil society – assets which are necessary to conserve and ...
The main components of LC3 cements are clinker, calcined clay, limestone, and gypsum. [24] [25] [26] The fresh concrete production involves synergetic hydration.[10] [27] Adding large amounts of calcined clay and ground limestone to the dry cement powder, [28] [29] when adding water to the mix for making concrete, cement and additives start to hydrate and the soluble aluminates released in ...
The environmental impact of 3D-printed concrete is heavily dependent on the processes and materials used for a given project. 3D printed concrete has the potential to reduce material in the production of concrete due to the elimination of formwork, but the specialized admixtures and required technology may have just as much of an impact on the ...