Infrastructure (e.g., road and rail) makes up a major part of the built environment and is the pillar of a developing economy. However, infrastructure construction consumes around 60% of the world’s materials and is responsible for around 53% of the world’s greenhouse gas emissions. Managing products and materials in a circular way, instead of producing new ones, can help cut down on material consumption and limit environmental impact. Nevertheless, the main concern of reusing recycled and waste materials is how to improve their capability to maintain (or even improve) infrastructure performance.

This Special Issue on “Reusing Processes of the Recyclable and Waste Materials in Infrastructure Engineering” seeks high quality studies focusing on the latest novel advances technologies for reusing infrastructure wastes (e.g., construction and demolition waste, steel slag, rubber, plastics, plant-based binders, etc.). Topics include, but are not limited to:

Railway circularity (rail, rail pads, sleeper, ballast, etc.);
Pavement circularity (foundation layers, pavement layers, urban and highway pavements, etc.);
Reusing Processes (separation technologies, alkali activation, rejuvenation, etc.);
Data science in infrastructure recycling (waste classification and pattern recognition, real-time inspection, digital twins, structural health monitoring, etc.).@en