• Reduces operator error
• Applicable to a wide range of soils
• Gives reproducible test results
• Provides direct measurement of penetration
The method is fundamentally more satisfactory than the Casagrande method as it is essentially a static test depending on the soil shear strength. The test is based on the relationship between moisture content and the penetration of a cone into the soil sample under controlled conditions.
Determines the moisture content at which clay soils pass from a plastic to a liquid state.
