Question
Download Solution PDFA soil has a plastic limit of 20% and a plasticity index of 10%. Find the liquidity index if the water content of the soil in its natural condition in the field is 25%.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Liquidity index (IL)
\(I_L={W_N-W_P\over I_P}\)
Where,
WN = Natural water content
WP = Water content at plastic limit
IP = Plasticity index = WL - WP
WL = Water content at liquid limit
Calculation:
Given
WP = 20%
IP = 20%
WN = 25%
\(I_L={25-20\over 10}\)
\(I_L={5\over 10}=0.5 \,or \,50 \%\)
IL = 50%
Hence option (3) is correct.
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