Horst-Michael Ludwig is Professor of Building Materials at Bauhaus University Weimar and Director of the F.A. Finger Institute for Building Materials Science (FIB). From 1996 to 2007, he led research at the building materials company Schwenk KG. Between 2007 and 2009, he served as Head of Research, Development, and Innovation at Heidelberg Cement AG. He was appointed professor atBauhaus University Weimar in late 2009. At the FIB, he coordinates the work of approximately 110 employees across 12 research groups. His work focuses on basic cement chemistry, climate-friendly cements, recycled concretes, modern concrete technologies, high-performance concretes and concrete durability. He has published >300 journal articles and currently involved in around 120 research projects. He organizes ibausil, Europes largest building materials conference, held every three years in Weimar. He chairs committees at the German Institute for Building Technology (DIBT) responsible for approving cements, concretes, admixtures, additives, and fibers.