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| Oh no, there´s some concrete in the office. |
Concrete is a construction material that consists
of cement (commonly Portland cement), aggregate
(generally gravel and sand), water and admixtures.
Concrete solidifies and hardens after mixing and
placement due to a chemical process known as hydration.
The water reacts with the cement, which bonds the
other components together, eventually creating a
stone-like material. It is used to make pavements,
architectural structures, foundations, motorways/roads,
overpasses, parking structures, brick/block walls
and footings for gates, fences and poles... |
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