Development and validation of a building design waste reduction model
journal contributionposted on 23.06.2016, 14:53 by C. Llatas, Mohamed Osmani
Reduction in construction waste is a pressing need in many countries. The design of building elements is considered a pivotal process to achieve waste reduction at source, which enables an informed prediction of their wastage reduction levels. However the lack of quantitative methods linking design strategies to waste reduction hinders designing out waste practice in building projects. Therefore, this paper addresses this knowledge gap through the design and validation of a Building Design Waste Reduction Strategies (Waste ReSt) model that aims to investigate the relationships between design variables and their impact on onsite waste reduction. The Waste ReSt model was validated in a real-world case study involving 20 residential buildings in Spain. The validation process comprises three stages. Firstly, design waste causes were analyzed. Secondly, design strategies were applied leading to several alternative low waste building elements. Finally, their potential source reduction levels were quantified and discussed within the context of the literature. The Waste ReSt model could serve as an instrumental tool to simulate designing out strategies in building projects. The knowledge provided by the model could help project stakeholders to better understand the correlation between the design process and waste sources and subsequently implement design practices for low-waste buildings.
The authors are grateful to the Consejería de Vivienda y Ordenación del Territorio de la Junta de Andalucía (Department of Housing and Regional Planning of the Andalusian Government) for subsiding the Research Project "-CDWs = + ECO-efficiency. Waste Reduction in the Design and Construction of Dwellings in Andalusia” (Andalusian Government, 2009).
- Architecture, Building and Civil Engineering