A Brief History of Cement
It is
unclear where cement, a hydraulic mixture created from a combination of
hydrated non-hydraulic lime and a pozzolan, was first discovered. However, it
was first used for building structures by the Ancient Macedonians. It wasn't
until three hundred years later that Roman engineers used concrete to build on
a large scale. One of their most notable concrete structures that still stands
is the dome of the Pantheon in Rome.
Making
cement didn't become a technical process until the 18th century in
France and Britain. It was in Britain that people began to see its true value,
and thus, a period of high-volume cement building began and the cost of the
material went up. Rosendale cement, which is a natural cement found in deposits
of dolostone rock, was the first type of cement used in a large scale building
project in the United States. It was discovered in the early 1800's near
Rosendale, NY, hence its name, and was used for the foundations of many
buildings such as the Statue of Liberty.
During the
time of the industrial revolution, carpenters were building all sorts of
structures in all sorts of locations. Thus, different types of cement materials
had to be made to suit their most common building needs: hydraulic cement
render is used as a final material for brick buildings erected in climates with
high levels of moisture; hydraulic mortars are used in structures that come into
contact with sea water; and generally stronger concretes. The process of making
cement, however, has come a long way from there; there are now countless
different types and combinations of materials for various pigeonholed needs,
and making specific types is a very intricate and scientific process.
Now, the
cement trade is one of the most important industries in the world.
International cement trading is still a fairly young concept; it wasn't until Alex F Bouri
conceptualized the floating terminal just a few decades ago that traders could
easily ship bulk materials overseas. However, after experiencing a period of
stagnancy, the cement industry is regaining health as the result of the newly
introduced ability to transport the material, so the future of the sector looks
bright.
Labels: Alexander Bouri, Alexander F Bouri, Seament
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