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Cement is made by heating limestone (calcium carbonate) with other materials (such as clay) to 1450°C in a kiln. The resulting substance is a marble-like ball called clinker that is then ground with a source of sulfate, like gypsum. This mixture is what we know as portland cement.
Cement is made by heating limestone (calcium carbonate) with other materials (such as clay) to 1450°C in a kiln. The resulting substance is a marble-like ball called clinker that is then ground with a source of sulfate, like gypsum. This mixture is what we know as portland cement.
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