END-OF-LIFE PHASE OF A RESIDENTIAL BUILDING: CD WASTE MANAGEMENT FROM A LIFE CYCLE PERSPECTIVE

摘要

An attributional life cycle assessment (LCA) investigates the potential environmental impacts related to the management of construction and demolition (C&D) waste, generated at the end-of-life of a residential building located in the South of Italy. The reference unit is a multifamily dwelling on three levels, which was constructed by utilizing Italian conventional materials and up-to-date procedures. The analysis includes the on-site activities of selective demolition, preliminary sorting and collection of the main components of the building, and the off-site processes of sorting, recycling and disposal of the main fractions of C&D waste. The study defines and quantifies the connections between these on-site and off-site processes as well as the main streams of materials sent to recycling, energy recovery, and disposal. The contributions to the overall environmental impact of each stage of the investigated C&D waste management have been quantified, and compared with those of a scenario involving a traditional demolition procedure.