[jyl]

Originally Posted by tadd

The CO2 expensive bit is making the quick lime. That could be captured. But what is interesting is that fresh concrete will reaborb 40-50% of what it took to create it in jst a few years. Process slows down as the CO2 has to go deeper into the slab or structure. Some design studies using a patterned or porous concrete suggest almost 90% could be readsorbed.

That is super interesting. Thanks!