Answer 0.861 Here is why Given - Porosity of 30% = 0.3 | Ethiopian Construction Work Professionals - ETCONp

Answer 0.861

Here is why

Given

- Porosity of 30% = 0.3
- void ratio in the loosest state
(emin)= 0.35
- void ratio in the densest state
(emax) = 0.92

Required

Density index (ID) =?

Solution

- e = n/(1-n)

- e = 0.3/(1-0.3)

- e = 0.429

ID = (emax-e)/ (emax-emin)

ID = (0.92-0.429)/ (0.92-0.35)

ID = 0.861

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