Who knows if this will ever be widely used around the world, but it's a fascinating idea.
In the video at the top, two British scientists - Richard Ambrose and Jonny Phillips - demonstrate what's called a concrete canvas shelter.
Basically, it's made from a canvas material that has all the elements of concrete but it's flexible enough to be turned into any shape.
Here's how it works.
The shelter starts out folded in an air-tight bag. Then, it's inflated to a building 50 square metres in size and soaked with 800-1000 litres of water (which is a lot of water).
All that can apparently be done by two people, in less than an hour or so.
24 hours later, the material hardens and becomes a rock solid, water proof and fire proof shelter -complete with a door built right in that locks.
The company behind it - Concrete Canvas in the UK - believes this could allow countries and aid organizations to respond much more quickly to disasters.
And it says the inside is sealed, plastic and sterile which could make it much easier for doctors to provide front-line medical care and surgery.
It could also provide better, more permanent shelter for people in the developing world and potentially be used in refugee camps and in war zones.
The company says the shelter has a minimum design life of 10 years.
Check out a video from Concrete Canvas below. And you can click here for a virtual tour.