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Concrete Innovations Session 10

LIMESTONE CALCINED CLAY CEMENT (LC3)

LC3 / LC2 a Breakthrough Technology to Lower CO2​

​Karen Scrivener, Professor, Construction Materials Laboratory, EPFL, Lausanne, Switzerland

​By far the most feasible option to reduce CO2 from cements is to partially replace the CO2 intensive clinker component with substitutes. The supply of traditional substitute materials – slag and fly ash is decreasing steadily. Calcined clay is an excellent alternative to slag an fly ash, and is abundant worldwide. It reacts much faster than either slag or fly ash and the synergy for a coupled substitution with limestone is of particular interest. This combination of limestone, calcined clay and cement is called LC3 and the combination of limestone and calcined clay for use as and SCM, LC2. In this presentation I will explain the technology, its advantages and disadvantages.

​Opportunities to Demonstrate Low Carbon Concrete in Transportation Infrastructure

​Tom Van Dam, Principal at NCE, Hancock, MI

​This presentation will discuss how FHWA and state DOTs are researching LC3 for transportation projects.

​Manufacturing LC3 -- Opportunities and Challenges

Cheng Qi, Technical Center Director, Ash Grove Cement Company

​This presentation will discuss the opportunities and challenges in manufacturing LC3 including technical, operational and economic issues.

Apr 19, 2023 11:00 AM in Eastern Time (US and Canada)