Highly compressible Auxetic Cementitious Composites (ACCs)

In my recenly published paper, Auxetic Cementitious Composites (ACCs) are created, by casting 3D printed polymeric auxetic reinforcement structures inside cementitious mortar. Four types of ACCs incorporating reinforcement with different auxetic mechanisms were prepared: “re-entrant” (RE), “rotating-square” (RS), “chiral” (CR) and “missing-rib” (MR). Experiments and finite element models were used to study the compressive behavior of the ACCs. The results indicate that all ACCs have significantly improved compressive ductility, compared to plain cementitious mortar(853% and 708% higher energy absorption than the reference mortar and the auxetic structure itself!)