Question

If liquid limit is 30 and plastic limit is 35 what is the value of ip

Answer 1

If liquid limit is 30 and plastic limit is 35 then the value of Ip is zero

Explanation:

This is a question of Civil Engineering

The Plasticity Index $I_p$ is given by

$I_p=\text{Liquid Limit}-\text{Plastic Limit}$

If the plasticity index is negative then it is assumed to be zero because it cannot be negative

Given

Liquid Limit = 30

Plastic Limit = 35

Therefore,

$I_p=30-35$

$\implies I_p=-5$

But Plasticity Index cannot be negative

Therefore, The Plasticity Index $I_p$ is zero.

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