3D-Printed Corn Composite Panels : concretl

Engineers at MANUFACTRA developed a 3D-printable concrete alternative made from corn waste named ‘Concretl’, introduced by Fast Company coverage of the research, featuring a blend of milled corn residue with binding minerals designed to form structural panels. The material was presented as a printable paste that cures into a dense, load-bearing composite, intended for use in building components rather than traditional poured concrete. Designers tested printability and strength, and reports described processing steps like milling, mixing with lime and other mineral binders, and extruding via additive manufacturing hardware.

For consumers and builders, the approach points to lower-carbon, circular-material options that reuse agricultural byproducts and reduce reliance on cement-heavy mixes; it aligns with trends toward bio-based, printable construction parts that cut waste and embodied emissions.