Dr Catherine LARIVE is a specialist in concrete and structure durability with a PhD in Material and Structure Science. As head of the Materials, Structures and Tunnel Durability Department of CETU, the French Centre for Tunnel Studies, she has worked for 20 years in the field of concrete (sprayed and cast in place), tunnel inspections, repairs, waterproofing, refurbishment and protection against fire. She is now in charge of research and partnerships at CETU. She is also the president of ASQUAPRO, a French Association promoting the Quality of Sprayed Concrete, as well as an active member of working groups of the French Tunneling Association (AFTES), the European Underground & Tunnel Forum (EUTF), the International Tunneling Association (ITA) and the French standardization body.