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Apr 06, 2020

Sewage and slag a great mix for stronger concrete

Sewage and slag a great mix for stronger concrete Magnified images showing concrete made with treated slag (centre), conventional aggregates (left) and raw slag (right). The treated slag forms a more seamless bond with the cement paste, making the concrete stronger.

Researchers have found a way to make stronger concrete – with ‘sewage-enhanced’ steel slag. Steel slag, a by-product of steel making, is often used as a substitute aggregate material for making concrete. Engineering researchers at RMIT University examined whether slag that had been used to treat wastewater could then be recycled as an aggregate material…

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