_Portland cement consists mainly of$? – McqOptions

MCQOPTIONS

1.	_Portland cement consists mainly of$?
A.	CaO & SiO‚Äö√á√á
B.	SiO‚Äö√á√á & Al2O‚Äö√á√â
C.	CaO & Al2O‚Äö√á√â
D.	CaO & FE‚Äö√á√áO‚Äö√á√â
Answer» B. SiO‚Äö√á√á & Al2O‚Äö√á√â

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