The raw materials used for the manufacture of Portland cement are – McqOptions

MCQOPTIONS

1.	The raw materials used for the manufacture of Portland cement are
A.	Lime, silica and sulfur dioxide
B.	Lime, silica and carbon dioxide
C.	Lime, silica and alumina
D.	Lime, silica and boric acid
Answer» D. Lime, silica and boric acid

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