Table 3 Case studies using the D5 Workflow and references of each case study

From: D5 digital circular workflow: five digital steps towards matchmaking for material reuse in construction

Case study

Description

Step

References

Zurich City

GIS data, cadastral data, demolition audit data, and Google Street View data were collected

Detection

43,87

Geneva Warehouse

A steel and timber floor structure were disassembled pre-demolition. The timber beams, pipes, and OSB plates were reused for Dome 5.1.

Disassembly

103

Zurich Music Pavilion

An entire two-floor timber building was disassembled. The timber beams were reused for Dome 5.2.

Disassembly

96

K118

A reused steel structure and interior of the building was scanned, making a material inventory.

Disassembly

110,113

Dome 5.1

A first dome was built with the reused elements from the Geneva warehouse. The dome has been disassembled and re-assembled at four different locations. QR codes were engraved for the material passport tracking. CNC milling was used for the connection fabrication.

Distribution

Design

Deployment

90

Dome 5.2

A second dome was built, improving the tracking technologies, design modelling, and fabrication technologies.

Distribution

Design

Deployment

55

Domes 5.x

Generative AI and XR workflows were tested out on building new domes with reused materials.

Design

Deployment

84