This episode explores the transformative world of cement production with special guest Yosra Briki from VICAT Group. Discover the critical role of clinker in cement's composition and why the industry is steering towards reducing its usage for a sustainable future. Yosra sheds light on how supplementary cementitious materials (SCMs) are revolutionising cement production by lowering the clinker-to-cement ratio, exploring both commonly used SCMs in the EU and innovative materials on the horizon. We tackle the major hurdles of SCM utilisation, from availability to quality concerns, and the promising avenues to overcome these challenges.