Polymer discovery enables 3D-printed sand to hold 300 times its own weight

https://www.ornl.gov/news/polymer-discovery-gives-3d-printed-sand-super-strength

"novel polymer to bind and strengthen silica sand for binder jet additive manufacturing, a 3D-printing method used by industries for prototyping and part production... process is cheaper and faster than other 3D-printing methods used by industry and makes it possible to create 3D structures from a variety of powdered materials, offering advantages in cost and scalability... additional super-glue... making a polymer sand composite stronger than any other and any known building materials, including masonry"

Related:

Liquid metal sticks to surfaces without a binding agent

https://phys.org/news/2023-06-liquid-metal-surfaces-agent.html

UMaine's bio-based 3D printed house has passed a crucial first test

https://www.mainepublic.org/business-and-economy/2023-10-10/umaines-bio-based-3d-printed-house-has-passed-a-crucial-first-test

Advanced manufacturing revs up in Europe with 3D printing

https://techxplore.com/news/2024-09-advanced-revs-europe-3d.html

New origami-inspired system turns flat-pack tubes into strong building materials

https://techxplore.com/news/2024-09-origami-flat-tubes-strong-materials.html

The energy of the future: for the first time, Enel Green Power and the Federico II University in Naples in Italy are using 3D printing to build concrete structures in a seismic zone

https://www.enelgreenpower.com/stories/articles/2024/09/concrete-printable-seismic-construction