WORLD HISTORY

Detailed explanation-1: -The Roman arch was the foundation of Rome’s architectural mastery and massive expanse of building projects across the ancient world. It allowed the Romans to make bigger buildings, longer roads, and better aqueducts. The Roman arch is the ancestor of modern architecture.

Detailed explanation-2: -The Roman concrete that made this soaring architecture possible consisted of a cement mortar holding chunks of stone (’aggregate’), mixed with pozzolana, a volcanic sand.

Detailed explanation-3: -This technique was invented by the Romans. Segmented arches were allowed greater amounts of flood water to pass, preventing the bridge from being swept away and allowing it to be lighter.

Detailed explanation-4: -Roman builders utilized naturally occurring materials, primarily stone, timber and marble. Manufactured materials consisted of brick and glass and composite materials consisted of concrete.

Detailed explanation-5: -The arch and the vault The Romans realised that arches didn’t have to be full semi-circles, allowing them to build their long bridges. Stacks of arches allowed them to build higher spans, best seen in some of their spectacular aqueducts. Vaults take the arches strengths and apply them in three dimensions.