The result was a pressurized brick made of a calcium bicarbonate solution that was also layered in a mold and then heated to form the new block, which is reportedly large and strong enough to be ...

This solution would then be reacted with limestone, neutralizing the CO2 by converting it to calcium bicarbonate, after which it would be released into the ocean.

Back in 2021, researchers came up with a recipe for greener concrete that had building waste and CO2 among its ingredients. Now the same team has used rubble from a demolished school and the ...

It may be easier on the environment, but the calcium carbonate concrete isn’t quite as strong as the usual stuff yet. The average compressive strength of the blocks was 8.6 MPa, which is far ...