Opus caementicium uncovered in the characteristic Roman arch. In distinction to contemporary concrete constructions, the concrete Utilized in Roman properties was ordinarily included with brick or stone. The Romans used concrete extensively from 300 BC to Advertisement 476.[eighteen] In the Roman Empire, Roman concrete (or opus caementicium) was produced from https://socialfactories.com/story5261697/an-unbiased-view-of-reinforced-concrete-meaning