en.Wedoany.com Reported - Besançon, France recently witnessed the completion of ViliaSprint², Europe's largest 3D-printed multi-residential building. Developed by Plurial Novilia, the project covers an area of 800 square meters and comprises 12 units across three floors. The building envelope was constructed using a COBOD BOD2 construction 3D printer and Holcim's printable concrete, making it a multi-residential building entirely formed through 3D printing construction processes.
PERI 3D Construction managed the on-site printing operations. The wall printing for the entire 3D-printed building took 34 days, significantly less than the initially estimated 50 days. Henrik Lund-Nielsen, Founder and General Manager of COBOD International, stated that future 3D-printed building projects could reduce printing time to just 14 days if a 5 cm layer height is adopted.
As part of a comparative experiment, Plurial Novilia constructed a nearly identical building using traditional methods on the same plot. The comparison showed that the 3D-printed building was completed three months ahead of its traditionally built counterpart, reduced on-site personnel from six to three, lowered material waste from 10% to 5%, and decreased overall material usage by 10% due to the curved design.
Fabian Meyer-Brötz, Managing Director of PERI 3D Construction, stated that this project demonstrates how 3D construction printing can now achieve faster construction, fewer workers, and fully load-bearing structures. The walls of the 3D-printed building are fully load-bearing, with all loads transferred directly to the 3D-printed walls.
The 3D-printed building utilizes Holcim's printable concrete based on TectorPrint technology, reinforced with synthetic coarse fibers, and belongs to the carbon-reduced ECOPlanet series. Other features include perlite insulation, wooden balconies, photovoltaic panels, and a hybrid gas/heat pump system, achieving approximately 60% energy self-sufficiency and complying with the French RE2020 2025 standard.
Plurial Novilia and its partners plan to construct approximately 40 3D-printed units next, deploying two 3D printers to work simultaneously. The printing time is expected to be reduced by a factor of four, with costs potentially approaching those of traditional construction.
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