Concrete Canvas makes for a building in a bag and much more.

Here's another option for a quick building, Concrete Canvas. Concrete canvas is essentially fabric impregnated with concrete and backed with a PVC baking. The fabric is put in place and wet down to form a hard concrete surface.

It can be used to reinforce gabion walls, to quickly create a concrete lined channel, or to make a hard surface for driving or flooring.

The canvas aka concrete cloth can also make a structure. The cloth is moved about the site by forklift, pulled out and placed in position with the help of a vehicle, inflated by fan, sprayed down with water and then becomes usable within 24 hours.

The material was invented in 2003 , can be repaired with concrete or patches of concrete canvas and has an expected lifespan of 10 years. It is already in use by the British armed forces.