A soil has a dry unit weight of 17 kN/m3 and water content of 20%, then what will be its bulk unit weight?
a) 19.3 kN/m3
b) 20.4 kN/m3
c) 22.6 kN/m3
d) 24.4 kN/m3
Answer: b
Explanation: Given,
Dry unit weight γd = 17 kN/m3
Water content w = 20% = 0.2
Bulk unit weight γ = γd *(1+w)
γ = 17*(1+0.2)
γ = 20.4 kN/m3.
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