We don't use CO2 to make cement, we use limestone, and CO2 is the byproduct of h... | Hacker News

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		bobfromhuddle 28 days ago \| parent \| context \| favorite \| on: Efficient method to capture carbon dioxide from th... We don't use CO2 to make cement, we use limestone, and CO2 is the byproduct of heating the limestone to make reactive calcium.

henearkr 28 days ago [–]

Do you know ferrock?

It is a kind of cement that uses CO2 to cure.

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