Concrete has been recorded in existence as
long ago as 7,000BC. It was used by the ancient Egyptians and the
Romans used it to build the Colosseum and Hadrian's Wall.
Throughout history, concrete has proven itself to be a most
flexible and durable construction material.
Today, modern technology has led to high
performance concrete with super-tensile load qualities. Also,
by the substitution of Portland cement with fly ash (fa) or
ground granulated blastfurnace slag (ggbs) in the mix, the
resulting concrete is stronger still and often used in bridges or
in structures exposed to corrosive sea salts.
Concrete's long life means that is more likely
that a concrete building will come to the end of its life because
no further use can be found for it, rather than a case of the
concrete having failed due to age. In these cases, demolition
is not always the automatic course. Structures can often be
stripped back to their concrete core, then rebuilt to new,
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Fabric for the Future
Specifying Sustainable Concrete