This material is really interesting and it has a higher tensile strength than normal concrete, but it is outrageously expensive in comparison which is why you won't be seeing it very often except in buildings where the owner has money to burn.

Shigeru Ban has been doing these kinds of projects for years. I'm a huge fan of his work and the cardboard tubes are much stronger than one might think.
They can also be treated to be water/fire resistant.
If you look him up, you'll see some of the work he's done for refugees around the world.