Opus caementicium uncovered in a attribute Roman arch. In contrast to fashionable concrete constructions, the concrete used in Roman structures was generally included with brick or stone. The Romans employed concrete thoroughly from three hundred BC to AD 476.[eighteen] Throughout the Roman Empire, Roman concrete (or opus caementicium) was produced https://brazilian-wax87640.actoblog.com/36544143/the-best-side-of-concrete-reinforced-beam