Bane punching that pillar wasn't really that impressive though. The pillar didn't seem like it was solid concrete all throughout, mostly like concrete on the outside and hollow blocks on the inside. Looked more like plaster if you ask me.
In any case, Bruce Lee can shatter a block of ice with one punch. It wouldn't be a stretch to imagine an equally talented martial artist who's heaving and stronger than Bruce Lee can shatter concrete. It still doesn't put Bane in superhuman strength category.