Walid Maherzi holds a PhD in Materials Chemistry in 2013 from the University of Caen-Basse Normandie; He also holds an engineering degree in Public Works from the Ecole Nationale des Travaux Publics in Algiers (Algeria). Since 2017, Walid Maherzi has held the position of Associate professor in Civil Engineering at the Materials and Processes Centre at IMT Nord Europe (France). Walid Maherzi has taken part in several research projects, as a Technical responsible, for the theme of the Circular Economy and the reuse and valorisation of industrial by-products and wastes as secondary raw materials for the civil engineering sector.