Raw materials used in the manufacture of portland cement

Raw materials used in the manufacture of portland cement

Table
Raw materials used in the manufacture of portland cement
(percentage composition)
raw material CaO SiO2 Al2O3 Fe2O3 MgO loss on ignition
limestone 52 3 1 0.5 0.5 42
chalk 54 1 0.5 0.2 0.3 43
cement rock 43 11 3 1 2 36
clay 1 57 16 7 1 14
slag 42 34 15 1 4 0
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Universalium. 2010.

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