Reusing Timber Formwork in Building Construction

Reusing Timber Formwork in Building Construction: Testing, Redesign, and Socio-Economic Reflection

Pronk, Arno (Eindhoven University of Technology)
Brancart, S. (TU Delft Structural Design & Mechanics)
Sanders, Fred (CPONH NGO)

2022

In 2018, the construction sector was responsible for 39% of the worldwide energy and process-related carbon dioxide emissions (Global Alliance for Buildings and Construction et al., 2019). This is partly due to the embodied carbon, which represents the carbon emissions related to building construction and material production (LETI, 2020). While zero energy buildings and zero energy renovations start to get the operational carbon down, the circular economy aims to do this by closing material loops and stimulating the reuse of discarded materials in building construction (Ellen McArthur Foundation et al., 2015). Although it is not a new phenomenon, material reuse does require a substantially different approach and is at this point not yet common in the building industry. This is especially true for load-bearing components. This article presents a pilot project for the reuse of discarded timber formwork for the construction of the façade and (load-bearing) substructure of a new house. Through this pilot case and by reflecting on a series of similar cases, it studies the remaining challenges for material reuse but also proposes and assesses redesign strategies that will allow upscaling the reuse of timber formwork. The project shows that although waste, material, and money can be saved by using reclaimed materials, it does complicate the design and construction process and, as such, does not necessarily reduce the total project budget. Moreover, for reuse to become a current practice, new design approaches and collaborations will need to be established. Finally, socio-economic factors must be considered to increase the acceptance of reclaimed materials in new building construction.

circular economy
circular housing
CO2 reduction
material reuse
resource efficiency
sustainable architecture

http://resolver.tudelft.nl/uuid:8ea7e615-0831-42f6-86a1-c244cfeea0f6

https://doi.org/10.17645/up.v7i2.5117

2183-7635

Urban Planning, 7 (2), 81-96

Institutional Repository

journal article

© 2022 Arno Pronk, S. Brancart, Fred Sanders