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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.
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 ...
Eco-Cement is a brand-name for a type of cement which incorporates reactive magnesia (sometimes called caustic calcined magnesia or magnesium oxide, MgO), another hydraulic cement such as Portland cement, and optionally pozzolans and industrial by-products, to reduce the environmental impact relative to conventional cement.
Portland cement manufacture can cause environmental impacts at all stages of the process. These include emissions of airborne pollution in the form of dust; gases; noise and vibration when operating machinery and during blasting in quarries; consumption of large quantities of fuel during manufacture; release of CO
In 2013, 70.8 percent of portland cement was sold as ready-mix concrete, such as is delivered in cement-mixer trucks. 11.5 percent was sold dry to contractors and construction materials stores; 11.3 percent was sold to manufacturers of concrete products; 4.6 percent was sold for oil and gas wells, and 1.8 percent was sold to government agencies ...
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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 ...
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