Australia's First Underwater 3D Concrete Printing System

controlled demonstration phase

Australian manufacturing company LUYTEN 3D, in collaboration with researchers from the University of Wollongong (UOW), has developed Australia's first submerged 3D concrete printing system. This system uses a world-first accelerator-free underwater concrete formulation that remains stable and buildable underwater without chemical accelerators, enabling direct, on-site extrusion of concrete structures underwater. The technology aims to simplify marine construction by reducing staging infrastructure and chemical dependencies, and is being assessed for applications in defence, ports, offshore energy, and coastal infrastructure.