Polyethylene is a wonderful material for subtractive manufacturing, especially parts that you might otherwise 3D-print or make out of wood.
It's easy to make "bricks" by melting and pressing chips and shredded material in a mold, and those bricks make excellent machine stock.
You can't use it as a building material, but I like the idea of mixing in sand and using them as paving stones. After all, we frequently pave playgrounds with flammable material made out of shredded tires.
I do wonder about microplastics flaking off of them, though. PE is pretty remeltable, but like most plastics it gets a bit more brittle with every cycle. Most recycling outfits mix some virgin plastics in with the recycled stuff for that reason.
It's easy to make "bricks" by melting and pressing chips and shredded material in a mold, and those bricks make excellent machine stock.
You can't use it as a building material, but I like the idea of mixing in sand and using them as paving stones. After all, we frequently pave playgrounds with flammable material made out of shredded tires.
I do wonder about microplastics flaking off of them, though. PE is pretty remeltable, but like most plastics it gets a bit more brittle with every cycle. Most recycling outfits mix some virgin plastics in with the recycled stuff for that reason.