There's quite a few instances where they take plastic and incorporate it into bricks, cement or ground cover, e.g. https://phys.org/news/2022-03-trash-kenyan-inventor-plastic-... if you don't mind videos, Business Insider has a decent series on subjects like this: https://www.youtube.com/playlist?list=PLmur3Z0Afau7p-Au2E1uY...