When I was a builder we used to pour a concrete ring foundation with reinforcing steel in it and then fill up the center of the ring with river stone and compact it. Then we would pour a 100mm (4inch) thick slab on top with reinforcing mesh in it. Is there any reason the hard fill under the concrete couldn’t be recycled plastic chips the size of stones? (Same with under road surfaces). I feel like this would solve our plastic waste problem.
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Plastics can be recycled into all sorts of stuff. The problem is that is just too expensive to do it. Pretty much everything about recycling plastic and such you ever been fed is mostly BS. Its very difficult and expensive to recycle plastic and very little of it is/was every recycled. The plastic that was recycled was often done in China (China would import waste plastic from the rest of the world to recycle) but the economics are so bad that this is no longer viable.
Its a money problem. People are trying to solve this now across the world, but right now its just not hitting the right financial numbers to make recycling plastic a profitable venture, so many recyclers are subsidized to offset losses… but mostly, plastic just goes into landfills.
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