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Differences Between Ordinary Portland Cement And Portland Pozzolana Cement
Cement is made by heating limestone (calcium carbonate) with small quantities of other materials (such as clay) to 1450°C in a kiln. The resulting hard substance, called ‘clinker’, is then ground with a small amount of gypsum into a powder to make ‘Cement’, the most commonly used type of cement. This cement is called Ordinary Portland Cement
Ordinary Portland Cement (OPC) is the most common cement used in general concrete construction when there is no exposure to sulphates in the soil or groundwater.