Building material circularity: Harvest Bay

Client: OVAM – Vlaanderen Circulair
Partners: Jansen AG, Bureau Bouwtechniek, Lootens, Franck, Buurman Antwerpen
Timing: 2021 -

Research & development I Circular building

As part of their innovation trajectory, Flanders Circular launches the project "Circular Building: Cooperation is Key". Jansen by ODS, Bureau Bouwtechniek, Lootens, Buurman Antwerpen and Franck investigate within this framework under the name Harvest Bay the opportunities and bottlenecks of a cooperation around the circularity of building materials.

Approach Cooperaton is Key
Circular innovation is hard to find in the building world: contractors and investors prefer to avoid risks related to new building techniques and often fall back on traditional building solutions. In addition, the individual interests of the organisations and various disciplines in the construction industry are predominant, resulting in little trust between the various actors within a (re)building project. This does not always make it clear to building owners and users what individual and social opportunities circular building has to offer.

Harvest Bay: Cooperation in the circular construction world.
Striving for cooperation from a broader perspective creates room for innovative solutions such as special demolition techniques and urban mining, renovation techniques and reuse of residual materials. 

Cooperation between partners in the construction industry can also result in long-term commitment to projects, for example by offering maintenance contracts and products "as a service". This extends the life of the raw materials and building materials and keeps them in the circular cycle.

Urban mining. 

  • A service that relieves the contractor of the burden of the selective demolition of existing buildings.  
  • Optimising the logistical challenges related to the timeline between supply and demand of circular building components by managing, renovating and storing them in the material halls. 

A virtual concept house is being realised to help architects design circular buildings. 

Component management platform
Preferably, a component goes directly from the site where it is mined to the site where it is reused. However, due to a timing mismatch and/or because the component still needs to be processed, it may be necessary to bring it to a hub. Sound management and follow-up are the challenge here.

Specification of circularity in tender documents.  Alternative ways to raise circularity (in relation to the consortium's materials) in tender specifications to a higher level.

Bureau Bouwtechniek
During the process, BB will take the lead in the study of circularity in material descriptions, material properties and expected performance. In addition, there will be a strong involvement in the study with regard to urban mining and setting up the component management platform.

more circularity

Team BB: ir. arch. Nadja Van Houten, ir. arch. Jona Van Steenkiste, ir. arch. Katrien Van Lierop