Cement News tagged under: Martin Luther University Halle-Wittenberg

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Belterra clay could replace limestone in cement production

11 October 2021, Published under Cement News

In a study, funded partly by the Brazilian Ministry of Education, Martin Luther University Halle-Wittenberg (MLU), Germany, and Brazil’s University of Pará, have found that CO2 emissions can be reduced during cement production by up to two-thirds by adding Belterra clay, unused overburden from bauxite mining. "This layer of clay can be up to 30 metres thick and covers the bauxite deposits in the tropical regions of the earth, for example in the Amazon basin," explains Professor Herbert Pöl...