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2022 United Nations Climate Change Conference – COP 27

8 November 2022 @ 9 h 00 min - 10 h 00 min

Global ABC event

LC3: a revolutionary low CO2 building material

Concrete is vital for building the green cities of the future and the infrastructure needed in the Global South. The development of limestone calcined clay cement (LC3) represents a saving of around 40% in CO2 emissions compared to traditional Portland cement, which is based mainly on clinker. LC3 uses a substitution of limestone with calcined clay to produce cement with excellent properties even at high levels of clinker substitution. This cement also differs from “niche green” building materials due to the fact that suitable clay is abundant worldwide, especially in the Global South where demand for new buildings will grow the most in the coming decades.

Preliminary program

  • Opening Speech, Ms. Yvonne Baumann, Swiss ambassador to Egypt
  • Importance of embodied CO2 from construction, Mr. Jonathan Duwyn, Global ABC, video
  • What is LC3 and why is it a breakthrough construction material, Prof. Karen Scrivener, LC3, EPFL
  • The role of calcined clay cement in reaching carbon neutrality in cement by 2050, Mr. Thomas Guillot, CEO of GCCA
  • Calcined clay cement as key element in Holcim strategy to decarbonize cement and concrete, Mr. Jan Jenisch, CEO of Holcim Group
  • Calcined clay cement potential in Africa, Mr. Rajiv Garg, UN-CTCN Regional Head Africa, Western Asia and CIS
  • LC3 potential in Egypt, Ms. Anne Dekeukelaere, Managing Director of Cementis
  • Q&A to panel

Global ABC’s event page is available here.

You can also follow the live stream.

Download the LC3 Brochure:


Buildings Pavilion Auditorium (lot n°113), Sharm El-Sheikh
BuildingsPavilion Auditorium (lot n°113)
Sharm El-Sheikh, Egypt