Abstract
Construction waste (CW) is a prime contributor to the stream of total waste worldwide. One of the biggest challenges of the construction industry is to minimise CW and to develop practices of a more sustainable nature for its management and recycling in order to promote its transition towards a more effective circular economy. The implementation of these practices contributes towards mitigating the scarcity of natural resources and the environmental impact of CW. Thus, a preceding and essential step is the estimation of CW during building design, which will allow the adoption of measures for its early reduction and optimisation. For this purpose, Building Information Modelling (BIM) has become a useful methodology to predict waste during the early stages of design. There remains, however, a lack of instrumental development. Therefore, this study proposes a BIM-based method to estimate CW during building design by integrating a consolidated construction waste quantification model in three different BIM platforms. For its validation, the method is applied to the structural system of a Spanish residential building. The results provide evidence that the proposed method is vendor-neutral and enables the automatic identification and quantification of the waste generated by each building element during the design stage in multiple BIM platforms.
Highlights
The construction industry constitutes a key sector in the sustainable development of the worldwide productive model system
The results provide evidence that the proposed method is vendor-neutral and enables the automatic identification and quantification of the waste generated by each building element during the design stage in multiple Building Information Modelling (BIM) platforms
They were enriched with the Construction waste (CW) attributes in the three BIM software tools analysed in accordance with Section 3.3.2
Summary
The construction industry constitutes a key sector in the sustainable development of the worldwide productive model system. In the European Union (EU) alone, the construction sector contributes approximately 9% of gross domestic product and provides 18 million direct jobs [1]. It produces approximately 35% of all greenhouse gas emissions, accounts for 40% of total EU final energy consumption, and accounts for 25–30% of all waste generated [2]. With the rising cost of construction projects and growing environmental concerns, the construction industry is under immense pressure to become more resource efficient and to develop construction practices of a more sustainable nature. The United Nations’ Sustainable Development Goals for 2030 demand sustainable cities and communities (goal 11), as well as responsible consumption and production (goal 12) [3]. In the EU, the Construction 2020 Strategy encourages the circular economy principles for the design of buildings [4,5,6] and calls for the reduction of waste and the facilitation of high-quality waste management
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