super-permeable-concrete

[Eric C]

anyone know if this would be safe to use in making rock....looks very promising for filtration


http://geekologie.com/2015/09/magic-super-permeable-concrete-makes-wat.php

 

[Reefing Madness]

 

[Swingline77]

It's called "pervious concrete". I'm wondering the same thing.

 

[KrisReef]

Depends. Does it float?

 

[Swingline77]

It doesn't float. Here's some more info:

 

[Scrubber_steve]

White portland cement, coral sand/ rubble, course rock salt