Overview
- Peer-reviewed results in Advanced Composites and Hybrid Materials detail a clay-based mix designed for rapid additive construction.
- Lab tests show about 3 MPa of buildable strength immediately after extrusion and more than 17 MPa within three days, enabling unsupported spans like window or door headers.
- The formulation relies largely on soil, hemp fibers, sand and biochar, aiming to cut the carbon burden associated with cement, which is widely reported to contribute roughly 8% of global CO2.
- The team reports full curing in eight to ten days with strengths exceeding 40 MPa, far faster than conventional concrete’s typical 28-day timeline.
- Costs currently exceed standard concrete, and the researchers plan ASTM-standard testing and professional engineering review, with potential applications including rapidly printed shelters after disasters.