ᐅ Develop a recycled construction material made from concrete, plaster, paint, wallpaper, and stone.

What happens if these materials are crushed together? Is it possible to produce concrete blocks from them?

I am looking for a way to recycle a house. The roof structure is not an option. Flat roof.

I assume that less than 0.1% of registered participants have studied materials science. I belong to the other 99.9%. But my gut feeling tells me that a material made from x different components (and therefore with x different properties regarding temperature behavior, moisture, flammability, stability, pollutant content, etc.) cannot be a good building material.

Janniklas schrieb:

What happens if you grind these materials together? Can you make DIN bricks from them?

Whatever you mean by "DIN bricks" – no one will develop a process to grind the small amount of construction debris from a single house and turn it into brick material. After World War II, this was done on a large scale, but back then people also drove cars powered by wood gas.

What is your intention: to save disposal costs for your specific debris, or to win first place in a youth science competition?

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What comes to mind are
- Fire protection
- Structural stability
- Harmful substances
- Processing machinery

My intention is nature conservation. Our civilization now only uses raw materials that have already been utilized before.

Janniklas schrieb:

My intention is nature conservation. Our civilization only uses raw materials that have already been used before.

Then every single raw material should be recycled separately and not just mixed with other waste. This is how it's done today – and what cannot be recycled simply ends up as waste in the end.