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[-] JohnDClay@sh.itjust.works 9 points 1 month ago

Roman concrete would cure by reacting with the carbon dioxide in the air, fixing it into the concrete. It doesn't sound like that's how this concrete works, but I wonder if a methodology like that would be carbon negative.

[-] NOT_RICK@lemmy.world 0 points 1 month ago

Isn’t the formula for Roman concrete unknown? I’m wondering how they can tell it is carbon negative

[-] hamsterkill@lemmy.sdf.org 5 points 1 month ago* (last edited 1 month ago)

Isn’t the formula for Roman concrete unknown?

Yes, though a lot of research has been done to figure out its most important properties. A secret of its durability was just figured out last year. https://news.mit.edu/2023/roman-concrete-durability-lime-casts-0106

[-] NOT_RICK@lemmy.world 2 points 1 month ago

Interesting, thanks for sharing

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this post was submitted on 06 Aug 2024
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