4 ms·
Concrete absorbs co2 while curing. It's the calcination process, where we heat limestone up until the co2 burns off, that has unavoidable emissions. Since this
by bobfromhuddle 2y ago
Concrete absorbs co2 while curing. It's the calcination process, where we heat limestone up until the co2 burns off, that has unavoidable emissions. Since this concrete is recycled, that's already happened.
- kragen 2y agosee https://news.ycombinator.com/item?id=40461810 https://news.ycombinator.com/item?id=40461810 for a correction