Anyway, using masks to make bricks/concrete/etc. is a wonderful idea to give plastic masks another life yet before they get reinforced in our concrete/bricks/asphalt/etc. there are a bunch of things we can recycle/upcycle masks into before they meet said reinforcement.
www.nytimes.com/2021/02/09/world/what-to-do-with-all-those-disposable-masks-turn-them-into-roads-researchers-say.html