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Geopolymer cement is an alternative to ordinary Portland cement and is used to produce Geopolymer concrete by adding regular aggregates to a geopolymer cement slurry. It is made from inorganic aluminosilicate (Al-Si) polymer compounds that can utilise recycled industrial waste (e.g. fly ash , blast furnace slag ) as the manufacturing inputs ...
Special wall fasteners (screw wall plug anchors) designed for autoclaved aerated concrete including gypsum board and plaster tiles are available at a higher cost than standard expandable wall plugs, including special safety-relevant anchors for high load bearing; [58] [59] [60] It is recommended that fixing holes be drilled using HSS drill bits ...
Vicat's cement is an artificial hydraulic lime, and is considered the "principal forerunner" [3] of portland cement. Plaque in Leeds, England commemorating Joseph Aspdin The name portland cement is recorded in a directory published in 1823 being associated with a William Lockwood and possibly others. [ 6 ]
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);
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.
The types and amounts of cement produced in 2015 were: Portland cement 80.4 million tons; Masonry cement 2.4 million tons; Other hydraulic cement 0.6 million tons; Cement production is predominantly portland cement, which is mostly used in concrete. Cement for concrete is an essential material for construction, and demand is a function of ...