Inventors: Will Crawford and Peter Brewin

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Concrete Canvas is an ingenious material that looks and feels like a material. But once it is soaked in water, it turns as hard as concrete.

This material can be used for loads of different things. But one of the cool things it has been used for is a pop-up concrete tent.

In its material form it is stitched together to make a tent, it is then pumped full of air to give it its full shape and soaked with water. When the material has set hard it creates a solid building.

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