Problem Statement
The construction sector generates a great deal of waste in Flanders, a growing trend due to regulations that encourage renovation to achieve energy targets. Although the demolition of buildings yields many reusable materials, awareness of this is often lacking in the construction sector. Furthermore, organizing reuse is a challenge due to transport, storage, and higher costs. To transition to a circular approach, timely planning is essential, including the sourcing and transportation of materials. A structured approach is needed to recover residual flows and reduce the material footprint in construction.
Research Question
How can circular construction methods in the residential construction sector in Flanders be structured and optimized to minimize waste and material footprint?
The research will focus on the large-scale residential construction sector, specifically social housing. Furthermore, the focus will be on structural materials (and not on finishing materials). Subsequently, the application of the findings from this research to the private residential construction sector will be assessed. Sub-questions:
- Which awareness-raising strategies are effective in making contractors, architects, and clients aware of the possibilities and benefits of reusing materials?
- How can the logistics of reused building materials (including transport, storage, and distribution) be optimized to facilitate the implementation of circular construction methods?
- What are the economic implications of reusing materials compared to traditional construction methods, given the potentially higher initial costs due to careful demolition and more complex logistics?
- What organizational and operational challenges do contractors face in circular construction projects, and how can these be addressed?
- How can renovation credits and other government financial incentives be used to support and promote the reuse of building materials?
- How can design processes be adapted to ensure the integration of reused materials from an early stage?
Research Methodology
We conduct this research using the Design Science Research method:
- We analyze the issues and identify the current barriers and obstacles to circular construction. We gather this information through surveys, expert panels, and interviews with relevant stakeholders. We also conduct a literature review on legislation and existing reports and studies. Finally, we perform a process analysis to map current processes related to waste streams.
- We design and develop various tools (see output).
- We implement these tools in various case studies and scenarios.
- We evaluate and optimize whether the awareness of the stakeholders has been increased. We also conduct a data analysis of the material flows. Finally, we will conduct cross-case analyses to identify common factors and variables that contribute to the success or failure of material reuse.
Expected results
- Online toolbox for architects and contractors, including a process model for circular material use and guidelines for material reuse
- Website with a materials platform that allows you to offer and search for materials
- Online brochure with information on circular material use for building owners
Want to know more? Contact circulairinnovatielab@ap.be.