La mappatura delle fonti di materiali secondari per le costruzioni: prime esperienze a Roma

In the last years, at the EU level, increasing attention has been paid to the circular economy processes applied to the built environment. A specifi c focus is placed on the role of circular strategies in urban regeneration and on the development of sustainable processing, recovery, reuse and recycling of materials. Implementing circularity in the built environment entails the rethinking of the design process and the elimination of the same concept of waste. In fact, technological design allows to integrate reuse, upcycling, superuse, and implement them at a large scale, as reliable technical options, not just in occasional design experiments. To this aim, 3 main factors appear crucial: the quantifi - cation of materials available at a local scale (embodied in the building stock or as potential fl ows of waste from diff erent sectors); support tools for the actors of the building process; design for deconstruction modalities. With reference to the fi rst aspect, the Research Group is currently engaged in experimentations applied on Rome, aimed at identifying and quantifying, at the city/urban district scale, potential sources of secondary building materials.A topic presently of European interest, as shown by three researches conducted in Belgium, UK and Germany, presented at the international conference SBE19 Brussels BAMB-CIRCPATH. The contribution describes the research approach focused on the evaluation of reuse potential in the increase of the resource effi ciency level at the district/quartier scale. By working on complex urban areas such as the Tiburtino district in Rome, where the present relevant urban transformations allow to test the potential to start local circular economy processes, the research aims at demonstrating the feasibility of reuse and of looping the already available material and immaterial resources at a large scale. The experimentations also apply to two other areas (Torrevecchia and Papareschi) in Rome. Final aim is to defi ne a Nearly Zero Impact of Materials approach.