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Engineers use wood pulp to 3D-print stronger concrete for construction | Cellulose nanofibrils (CNF) could potentially revolutionize 3D-printed concrete.
Rigorous testing has shown that concrete with cellulose nanofibrils performs exceptionally well under stress.
3D printing technology is rapidly evolving and has shown promise in applications spanning from the fabrication of biological tissues to the development of ceramics capable of removing persistent contaminants from water. “The mixture has to flow well for smooth fabrication, but harden into a stable material with critical properties, such as good mechanical strength, interlayer bonding and low thermal conductivity.” Newsinnovation Ugur Kilic, a University of Virginia civil engineering Ph.D. student, keeps an eye on the concrete printer in Professor Osman Ozbulut’s lab at UVA.
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