Abstract
Information Modelling and Management (IMM) methods for Most Economically Advantageous Tender (MEAT) can promote the adoption of environmentally sustainable practices. Despite the wide regulatory framework and existing drivers, Construction and Demolition Waste (CDW) trends are still growing. The literature review analyzed IMM and CDW management implementation during design phases although few studies focused on Green Public Procurement (GPP) and CDW management integration from the Public Client’s point of view. This research aims at investigating the integration and efficiency of MEAT and IMM to promote the application of sustainable strategies focused on waste reduction and resource valorization. The study investigates the Public Client’s role in promoting sustainable practices, introducing digital material inventory and BIM during the design phases, and including environmental award criteria in the call for tender documents. A Design Build (DB) procurement model was considered in the case study of a brownfield renovation and the construction of a new school in northern Italy. The methodology provided the Public Client and included a method to evaluate the environmental impact of the bids, allowing for proper selective demolition planning, CDW decrease, and organization while promoting their integration in companies’ expertise and procedures. The replicability of the methodology is demonstrated by positive results of present and previous case studies.
Highlights
The construction sector is an industry with a high intensity of raw material consumption, corresponding to about a half of the Earth’s raw materials [1,2]
Cheng et al [66] investigated how Building Information Modelling (BIM) implemented during the design phase could support Construction and Demolition Waste (CDW) reduction during the construction phase by eliminating the root causes of waste generation through clash detection, quantity take-off, phase planning, site utilization, and digital prefabrication
During the preliminary design phase, the output of field surveys supported by closeoutput of field field surveys surveys supported supported by closecloseDuring the preliminary design phase, theofoutput of by range photogrammetry were image planes the to-be-demolished facilities
Summary
The construction sector is an industry with a high intensity of raw material consumption, corresponding to about a half of the Earth’s raw materials [1,2]. Construction and Demolition Waste (CDW) accounts for one third of the total amount of waste by volume in the EU, as reported by the EUROSTAT 2019 Waste Statistics [4]. Considering the high consumption of raw materials and the high level of discard production, the CDW management process must be reengineered to reduce scrap and to take advantage of the high potential for reusing and recycling materials when construction waste is correctly identified and separated through selective demolition procedures [5]. Waste management in the Architecture, Engineering, Construction, and Operations (AECO) industry requires adopting a ‘cyclic’ rather than a ‘linear’ approach [6]. Compared waste generation tion trends in European industrialized sectors theperiod periodofof2004–2018 2004–2018[4]
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