Calcined Clay as a Green Cement Component

Following previous posts on green cement blends using pozzolan and synthetic pozzolans, recent news from a European study reinforces the benefits of calcined clays.

A study performed by EPFL provides details of the positive benefits of substituting a blend of calcined clay and limestone for up to 40% reduction in greenhouse gas reduction from the cement.  The blend, which the researchers call Limestone Calcined Clay Cement, or LC3 for short, is claimed to replace up to half of the cement with calcined clay and limestone without changing the performance of the cement.

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