Lime, Rice Husk and 3D Printing Shape Experimental Building Project
Italian 3D printing company WASP has completed Itaca, a self-sufficient farm building at the newly opened Shamballa research site in Emilia-Romagna, Italy. The project serves as a testing ground for architectural 3D printing technologies and alternative construction materials.
WASP produced the building with its Crane WASP construction printer. The project explores how digital fabrication can create compliant and repeatable building systems. The team integrated electrical installations and radiant heating directly during the printing process. This approach reduces the number of construction stages and simplifies on-site assembly.
Lime-Based Material System
The material formulation plays a central role in the project. WASP printed the walls using a mixture of natural hydraulic lime (NHL) and Geolegante, a mineral binder developed by Kerakoll. The project partners selected this formulation because it generates lower carbon emissions than conventional cement-based alternatives.
The wall system also incorporates rice husk and natural insulation materials. These components help improve thermal performance and vapour permeability. They also reduce the environmental impact of the building envelope. The material combination reflects a growing interest in mineral-based and bio-based feedstocks for large-scale additive manufacturing.
Research into Additive Manufacturing for Construction
Itaca forms part of a larger research environment dedicated to architectural 3D printing and bio-construction. The site allows researchers and industry professionals to test new material systems and construction methods.
The project investigates how additive manufacturing can reduce material waste and improve construction efficiency. It also demonstrates the design freedom that digital fabrication can offer. According to WASP, Itaca complies with Italian and regional seismic regulations. The company describes it as a certified and replicable example of a 3D printed building.
As interest in low-impact construction grows, projects such as Itaca provide insight into the potential of combining architectural 3D printing with alternative binders and bio-based materials.
Source & images: WASP