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Composition percentage of CaO and SiO2 in Portland cement is -
Question

Composition percentage of CaO and SiO2 in Portland cement is -

A.

40 - 45 % and 10 - 15 %

B.

85 - 90 % and 40 - 45 %

C.

60 - 68 % and 17 - 24 %

D.

3 - 10 % and 80 - 90 %

Correct option is C

Composition percentage of CaO and

in Portland cement is 60 – 68 % and 17 – 24%

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