As part of his ongoing research into industrial polystyrene waste, Nicolas Zanoni developed a way to transforms this material into something completely different .
Expanded polystyrene as a waste is compressed to extract the air. It takes the form of a compact but friable block.
It is simply by burning the surface that the material will change its structure and create a solid skin.
The flames melt and sculpt the block like the crater of a volcano.
For useful purposes, the plate is pressed and made flat, revealing a smoky, marbled pattern.