Concrete is the most useful material in the world when it comes to volume. It can be poured into place as a liquid but it hardens to resemble a material such as natural rock, which makes it the perfect building material.
Historical Facts About Concrete
Ancient Egypt originally made use of concrete as an infill material for the pyramids.
The ancient Romans, on the other hand, were the first to use concrete as a building material. Builders have mixed water, lime and volcanic ash – they called this “pozzolana”. They actually built the Pantheon using concrete. Up to now, Pantheon is still the largest unreinforced concrete dome in the world.
In 1874, an Englishman working as a bricklayer tried his best to create his own cement. After plenty of trials and errors, he was able to make cement for which he received a patent. He called this “Portland Cement” since the color was the same with quarried stone from the Isle of Portland off the English coast.
Concrete ears or sound mirrors are huge concrete dishes that were built during the WWII in order to detect any approaching aircraft. Microphones were suspended at the dishes’ focal points.
Today, most construction company are making use of scented form release agents in order to impart a pleasant smell in concrete – bubble gum being the most famous.
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