Title:
Limestone Calcined Clay Cement Makes Inroads in Reducing Carbon Emissions
Author(s):
Andrea Schokker and Karen Scrivener
Publication:
Concrete International
Volume:
44
Issue:
9
Appears on pages(s):
25-27
Keywords:
clinker, concrete, material, reduction
DOI:
10.14359/51737200
Date:
9/1/2022
Abstract:
Limestone calcined clay cement (LC3) is a blend of two materials that, when combined, have a synergetic effect. It allows the reduction of as much as half of the clinker content, resulting in cutting up to 40% of the CO2 emissions from the cement and concrete industry. The potential for the CO2 reduction depends on the conditions of calcination and the proximity of the clay.
Related References:
1. Boden, T.; Andres, B.; and Marland, G., “Global CO2 Emissions from Fossil-Fuel Burning, Cement Manufacture, and Gas Flaring: 1751-2013,” Carbon Dioxide Information Analysis Center (CDIAC), Oak Ridge National Laboratory (ORNL), Oak Ridge, TN, 2016.
2. Zunino, F.; Martirena, F.; and Scrivener, K., “Limestone Calcined Clay Cements (LC3),” ACI Materials Journal, V. 118, No. 3, May 2021, pp. 49-60
3. Limestone Calcined Clay Cement, École Polytechnique Fédérale de Lausanne Laboratory of Construction Materials (LMC), Lausanne, Switzerland, lc3.ch.
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5. “Cement Technology Roadmap: Carbon Emissions Reductions up to 2050,” Technology report, International Energy Agency, Paris, France, Oct. 2009, www.iea.org/reports/cement-technology-roadmap-carbon-emissions-reductions-up-to-2050.