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Ordinary Portland Cement from non-carbonate calcium sources


Technology Description

Ordinary Portland Cement from non-carbonate calcium sources such as calcium silicate rocks (e.g. basalt), recycled cement, mine tailings or other calcium containing industry waste results in no process emissions. It can also co-produce supplementary cementitious materials that improve the economics of the process, can be produced in a way that enables greater shares of renewable energy in the production, can produce waste products that sequester CO2 and thus yield negative emissions. Since these processes achieve the same chemical composition as Ordinary Portland Cement, there are no limitations to the applications for which they can be used and they do not face major regulatory barriers to adoption.

Relevance for Net Zero

Key Countries

United States

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