Replace cement in concrete with aluminium

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Researchers from Qatar University are undertaking a project which aims to partially make use of aluminium slags in concrete structures, replacing cement.

Omar al-Azzawi, a Masters student on the project team, said: “Because of the expanding properties of aluminium slag, the mixture can be used in building subfloors, blocks and pre-moulded panels. Applying this idea will contribute in reducing the cost of concrete, time needed for it to be cured, pollution caused by cement production and the pollution that results from throwing the dross into the landfill.”

The cement industry is responsible for 7% of the total world-wide carbon dioxide emissions raising international concerns on how to reduce these levels. New materials and technologies supporting sustainable development are welcomed in a bid to reduce the impact of cement.