ENVIRONMENTAL CONSEQUENCES OF REFURBISHMENT VERSUS DEMOLITION AND RECONSTRUCTION:A COMPARATIVE LIFE CYCLE ASSESSMENT OF AN ITALIAN CASE STUDY

作     者：Francesco Pittau Dayana Giacomel Giuliana Iannaccone Laura Malighetti 

作者机构：ETH ZürichInstitut für Bau-und InfrastrukturmanagementSustainable ConstructionStefano-Franscini-Platz 58093 ZürichSwitzerland. Politecnico di MilanoSchool of ArchitectureUrban planning and construction Engineering(AUIC)Via Golgi 4220133 MilanoItaly. Politecnico di MilanoDepartment of ArchitectureBuilt Environment and Construction Engineering(ABC)Via G.Ponzio 3120133 MilanoItaly 

出 版 物：《Journal of Green Building》 (绿色建筑学报（英文）)

年 卷 期：2020年第15卷第4期

页      面：155-172页

核心收录：

学科分类：0202[经济学-应用经济学] 02[经济学] 020205[经济学-产业经济学] 

主　　题：refurbishment demolition reconstruction LCA construction materials 

摘      要：In the building sector,new standards for energy efficiency are reducing the energy consumption and the carbon emissions for building operation to nearly *** a result,the greenhouse gas emissions and related environmental impacts from mate-rials production,and especially insulation,are becoming key *** the near future,most of the building stock is expected to be refurbished and a great amount of construction materials will be consequently required.A relevant share of waste is generated from building construction and demolition and limiting the volume is a priority of the EU *** this work the renovation of industrial buildings in a dismissed area located in Lecco,Italy,was considered as a case *** alterna-tive construction systems(EPS,WOOD,ROCK,PU,HEMP)for renovating the building envelopes were assumed,and a life cycle assessment(LCA)adopted in order to measure the environmental impact of each *** results were compared with a scenario which included demolition and reconstruction of a similar building with the same net volume and thermal *** results showed that timber and concrete are the most environmentally friendly materials to rebuild the structures in case of demolition,contrary to steel which leads generally to higher environmental impacts,except land *** general,EPS,WOOD and HEMP technological alter-natives accounted for the highest scores,both in terms of burdens on the ecosystems and on depletion of resources,while ROCK accounted for the lowest ***,refurbishment scenarios generally accounted for a lower global warming potential(GWP)even if demolition,waste treatment and the benefit from recycling/reuse are taken into account.