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Old 05-24-2024, 03:33 AM   #1 (permalink)
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very low-emission concrete at scale

Via Hacker News:

www.cam.ac.uk: Cement recycling method could help solve one of the world’s biggest climate challenges
Quote:
Researchers from the University of Cambridge have developed a method to produce very low-emission concrete at scale – an innovation that could be transformative in the transition to net zero.

The method, which the researchers say is “an absolute miracle”, uses the electrically-powered arc furnaces used for steel recycling to simultaneously recycle cement, the carbon-hungry component of concrete.
....
Reference:
Cyrille F Dunant, Shiju Joseph, Rohit Prajapati, Julian M Allwood. ‘Electric recycling of Portland cement at scale.’ Nature (2024). DOI: 10.1038/s41586-024-07338-8
So you get recycled cement, and the cost to produce steel is reduced by combining the two processes.

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