No, they used bronze and iron. Steel, a blend of iron and carbon, came much later.
EDIT: The above is purely incorrect. The Romans used Noric Steel, which was of very high quality. The first uses of steel so far found dates back 4,000 years.
Wikipedia confirms this under the articles of Steel, Noric Steel, and Roman Metallurgy.
The Romans
The main building technique introduced by the Romans was the dome. Their invention of various weights of concrete made this possible.The main building technique introduced by the Romans was the dome. Their invention of various weights of concrete made this possible.The main building technique introduced by the Romans was the dome. Their invention of various weights of concrete made this possible.The main building technique introduced by the Romans was the dome. Their invention of various weights of concrete made this possible.The main building technique introduced by the Romans was the dome. Their invention of various weights of concrete made this possible.The main building technique introduced by the Romans was the dome. Their invention of various weights of concrete made this possible.The main building technique introduced by the Romans was the dome. Their invention of various weights of concrete made this possible.The main building technique introduced by the Romans was the dome. Their invention of various weights of concrete made this possible.The main building technique introduced by the Romans was the dome. Their invention of various weights of concrete made this possible.
No, the Romans did not invent bricks, but they did invent concrete.
The Egyptians because for there pyramids to make the big huge wall. NOT! I have no flipping clue who used concrete before the Romans!
Romans used concrete, the arch and domes which lead to roads, aqueducts, coliseums, baths, and basilicas .
The Romans perfected concrete for use in building materials.The Romans perfected concrete for use in building materials.The Romans perfected concrete for use in building materials.The Romans perfected concrete for use in building materials.The Romans perfected concrete for use in building materials.The Romans perfected concrete for use in building materials.The Romans perfected concrete for use in building materials.The Romans perfected concrete for use in building materials.The Romans perfected concrete for use in building materials.
The Romans invented concrete.
The Romans were the first to use concrete.
The Romans invented concrete.
Calcium metal is extremely soft and brittle but the mineral calcium carbonate is already a component in many bridges and has been for about three thousand years. Calcium carbonate is a component of concrete. The Romans were the first to use concrete.
The Romans are credited for using concrete first.
the Romans invented concrete. They called it Opus caementicium
The Romans
Concrete is very important to the Romans because they were the first people who invented the hydraulic cement based concrete. The Roman did build very many concrete structures like the Pantheon in Rome.
Concrete was invented by Romans in circa 1243 A.D.
Concrete.
By the Romans