Opus caementicium uncovered inside of a characteristic Roman arch. In distinction to contemporary concrete buildings, the concrete Utilized in Roman properties was normally covered with brick or stone. The Romans applied concrete extensively from 300 BC to Advertisement 476.[eighteen] Through the Roman Empire, Roman concrete (or opus caementicium) was created https://wordpress-website-service61481.mdkblog.com/41717493/little-known-facts-about-concrete-reinforced-stone