Concrete is one of the most widely used building materials in the modern world, but it has been used throughout history.
The Romans used concrete to build roads, viaducts and buildings, such as the Pantheon in Rome, which is still standing today.
Pantheon,
Rome, Italy
CONCRETE, LIKE BRICK, HAS A HIGH , SO CAN STORE LOTS OF HEAT
CEMENT, USED IN MAKING CONCRETE ACCOUNTS FOR 8% OF THE WORLD’S CO₂ EMISSIONS
It is the cement used in making concrete that accounts for the most embodied carbon, because the way it is made uses a lot of heat.
One alternative to cement is to use the waste from manufacturing steel. it is called ‘fly-ash’ and can be used to make concrete nearly as strong as that made using cement.
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