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Not exactly what you're asking for, but similar goals: https://preciousplastic.com/

really interesting. i had no idea such a movement existed. they make it look simple and easy.

this guy is already producing a 9KG "upcycled plastic brick" which apparently can be used in construction

https://bazar.preciousplastic.com/en/listings/687199-upcycle...

I wonder about this too. It would be a form of carbon capture, even though it is probably a tiny percentage.

It’s probably better to figure out how to convert it to concrete stabilization materials.

interesting. e.g. a replacement for iron rebar?

Probably more like aggregate, not rebar. I believe fiberglass is already added when the situation calls for it. Plastic strands could act in a similar fashion and would be practically free.