List of top Geotechnical Engineering Questions on Index properties

Based on the Casagrande's plasticity chart, plasticity index (in %) of inorganic clays having a liquid limit of 40 %, ranges between

A soil sample has following properties:

Natural water content = 30 %
Plasticity index = 40 %
Liquidity index = 50 %

The estimated plastic limit (in %) of the soil is (rounded off to one decimal place).