Liquid Index
Liquid index, abbreviated as LI, is scaling the natural moisture content of a soil sample to the liquid limit and plastic limit.
Liquid Index formula
\(\large{ LI = \frac{ w_n \;-\;PL }{ LL \;-\; PL } }\) |
Where:
\(\large{ LI } \) = liquid index
\(\large{ LL } \) = liquid limit
\(\large{ w_n }\) = natural water content
\(\large{ PL }\) = plastic limit