# ‘Absolute miracle’ breakthrough provides recipe for zero-carbon cement

- Link: https://www.widthness.com/absolute-miracle-breakthrough-provides-recipe-for-zero-carbon-cement/
- Published: 2024-05-30T09:30:30-05:00
- Author: Curated by John Wysocki

Photo caption: Old concrete can be recycled in furnaces used to recycle steel, in a new method that drastically reduces the CO2 emissions of both. Image courtesy of Cambridge University. Article by Michael Irving. New Atlas – May 23, 2024. Research article: Nature. Source: Cambridge University. Concrete and steel production are major sources of CO2 emissions, but a new solution from Cambridge could recycle both at the same time. Throwing old concrete into steel-processing furnaces not only purifies iron but produces “reactivated cement” as a byproduct. If done using renewable energy, the process could make for completely carbon-zero cement. […] Click here to view original web page at newatlas.com  Video: The world’s first process for making zero emissions cement – Cambridge University.