TIL that concrete is sometimes imbued with special bacteria, allowing itself to self-heal and strengthen through calcification.

http://en.wikipedia.org/wiki/Concrete#Microbial_concrete



Submitted April 05, 2015 at 02:46AM by campfire14 http://www.reddit.com/r/todayilearned/comments/31ggdv/til_that_concrete_is_sometimes_imbued_with/