In their previous experiment, the team created calcium carbonate concrete by pouring a bicarbonate solution ... a demolished school building and carbon dioxide (CO 2) from the air into new blocks ...

The production of cement, a key ingredient for concrete, inevitably leads to CO2 emissions. To make concrete, limestone, or calcium carbonate, is mixed with clay and other materials and then ...

This triggers a chemical reaction in which the hydroxide and bicarbonate ions combine ... it to store over half its weight in ...

So, if we have calcium carbonate and we heat it, it breaks down to produce calcium oxide and carbon dioxide. Gethin: OK, I know you're poised with your pen and your flip chart. But, before that ...

Scientists at Northwestern University have developed a method for making sand-like materials for concrete by combining carbon ...