New concrete could save our caves??

Filtercrete

http://ozingagreenbuilding.com/

check out the videos

Neat stuff. Thanks for the post.

Very nice!

I was talking about this recently with a friend of mine that's a CE. Really amazing infiltration rates for concrete. Holds some good potential for reducing surface runoff in developed areas in the future.

They were designing a lot of the concrete portions of their new greenway project using this stuff. The biggest problem he had was trying to figure out what he needed to keep it from floating away during floods.

Marbry