NUS tests structural 3D concrete printing for on-site construction

Researchers at the National University of Singapore, in collaboration with Woh Hup, have successfully tested structural 3D concrete printing for on-site construction. The project reported a 50% reduction in manhours during trials and explored lower-carbon concrete mixes, achieving over 40% manpower savings and 60% efficiency gains for complex components. The new 3D-printable concrete mix incorporates 60% recycled waste glass powder, resulting in significant reductions in embodied energy and carbon emissions. The first on-site printing occurred in August 2025, with a second exercise starting on January 29, 2026.