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What is void ratio?

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What is void ratio?

(a) 1 – (bulk density/apparent sp gr)

(b) (bulk density/apparent sp gr) – 1

(c) 1 – bulk density/apparent sp gr

(d) bulk density/apparent sp gr – 1

The question was posed to me during an interview.

Question is taken from Strength of Aggregates in chapter Aggregates and Testing of Aggregates of Concrete Technology

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The correct choice is (a) 1 – (bulk density/apparent sp gr)

Easy explanation: The empty space between the aggregates particles are termed as voids. And the corresponding ratio will be calculated by the given formula.

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