[IMBY]

I still get the shivers, seeing all these mid-rise apartment buildings being built out of wood, and I know, yes, they have lots of water sprinklers in those buildings, but the biggest shiver is their building them in earthquake zones, where the water could get cut off during a quake, and then??

I have no idea where the rest of the world is getting their sand for concrete, but I know in Mexico it's even hard to find a one story wooden house, concrete all the way!

When they implode an older concrete building, do they or can they recycle the concrete?