From laboratory investigations, the liquid limit, plastic limit, natural moisture content and flow index of a soil specimen are obtained as 60%, 27%,32% and 27 respectively. The corresponding toughness index and liquidity index of soil specimen respectively are.
Given. WL = 60%. Wp = 27%. W = 32%. If = 27. Plasticity index Ip= WL - Wp = 60 – 27 = 33%.
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