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Civil Engineering PE

Category - Soil and Materials

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What is the void ratio of a soil with a porosity of 40%?

40%
60%
67%
Not enough information provided

Explanation

Answer: C - The void ratio of a given soil with a porosity of 40% is 67%. The void ratio is the relationship of voids to solids.

Solution: Use the following equation to determine Void ratio, e

e = volume of voids / volume of solids

= n / 1 - n

= 0.40 / (1-.40) x 100

e = 67%

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