So we built
unreinforced concrete walls — pure compression structures.
After nearly two millennia, the dome remains the largest
unreinforced concrete dome in the world.
Where else in the world are huge populations still at risk because they are living in cities where the primary building construction is
unreinforced concrete and there is a likelihood of a major earthquake like this?
Not exact matches
It was noticed in a California earthquake some years ago that
unreinforced brick warehouses survived while reinforced
concrete (an earthquake - resistant material) elevated freeways fell, and small apartment houses built on steel columns over open parking areas often dropped to the ground.