plastic fantastic

Wouldn't it be nice if there was a country that said let me have all your plastic waste to the world. If thousands of barges came to the country full of plastic then they could grind it up and mix it with cement powder and make many concrete blocks with ground up plastic as the aggregate instead of sand then sell it back to the rest of the world. That would be so cool. 

They could call it placrete, it would have the insulation and water resistance of plastic combined with the fireproof high strength of cement stone. Not sure it would work though, it is something to try one day.  They could also make it into bricks. They could be baked nicely to melt the plastic grains to the ceramic particles. Plus they could use it for the streets and foot paths.