Researchers at the Indian Institute of Technology Guwahati (IIT Guwahati) have tested full-scale 3D printed concrete walls under simulated earthquake conditions and experimentally validated a design framework for seismic applications.

Published in the Journal of Building Engineering , the study addresses a procedural gap that has constrained the technology’s reach: no standardised building code specifically addresses 3D printed construction in seismic zones, meaning each project currently requires regulatory approval on a case-by-case basis.

Validating Strength Through Cyclic Loading Tests

To close that gap, the team built three walls from different materials and subjected them to cyclic loading conditions designed to replicate seismic stress. The first, made from plain printable mortar, served as the control. The second used strain-hardening ductile concrete, a material engineered to distribute stress across multiple small cracks rather than concentrate it at a single failure point.…