When the LI is 1, remolded soil is at the liquid limit and it has an undrained shear strength of about 2 kPa . When the soil is at the plastic limit, the LI is 0 and the undrained shear strength is about 200 kPa.
12.
The "'Plasticity Index "'of a particular soil specimen is defined as the difference between the Liquid Limit and the Plastic Limit of the specimen; it is an indicator of how much water the soil particles in the specimen can absorb, and correlates with many engineering properties.
