Opus caementicium exposed within a attribute Roman arch. In distinction to modern concrete constructions, the concrete Employed in Roman buildings was generally included with brick or stone. The Romans employed concrete extensively from three hundred BC to Advertisement 476.[eighteen] Over the Roman Empire, Roman concrete (or opus caementicium) was constructed https://bookmarktune.com/story19675228/the-fact-about-concrete-reinforced-steel-that-no-one-is-suggesting