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The total alumina content in high alumina cement should not be less than _______

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The total alumina content in high alumina cement should not be less than _______

(a) 24%

(b) 32%

(c) 50%

(d) 75%

The question was posed to me by my school principal while I was bunking the class.

I'm obligated to ask this question of Plain and Reinforced in division Miscellaneous Materials, Plain and Reinforced Cement Concrete of Construction & Building Materials

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The correct choice is (b) 32%

Explanation: The total alumina content in high alumina cement should not be less than 32%. Also, it is specified that the ratio of alumina to lime by weight should lie between 0.85-1.30.

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