Ancient Roman architecture
Although concrete had been used on a minor scale in Mesopotamia, Roman architects perfected Roman concrete and used it in buildings where it could stand on its own and support a great deal of weight. The first use of concrete by the Romans was in the town of Cosa sometime after 273 BC. Ancient Roman concrete was a mixture of lime mortar, aggregate, pozzolana, water, and stones, and was stronger than previously-used concretes. The ancient builders placed these ingredients in wooden frames where they hardened and bonded to a facing of stones or (more frequently) bricks. The aggregates used were often much larger than in modern concrete, amounting to rubble.
François Coignet
Coignet is the inventor of moulded concrete which is known as "Béton Coignet." He had much success at building with this type of concrete. He became a renowned building contractor and showed his many designs, including the molded concrete church of Le Vesinet near Paris. This church with its 130-foot spire is the first modern monumental building built in concrete.