Consistency
Last modified by TerraIndex TerraIndex on 2021/09/30 15:20
Soil consistency is the strength with which soil materials are held together or the resistance of soils to deformation and rupture. Soil consistency is measured for wet, moist and dry soil samples.
Consistency
| Class | In the field |
|---|---|
| Extremely weak | The soil slips between the fingers when it is pressed in a hand. |
| Very weak | A finger can be easily pressed up to 25 mm into the sample. |
| Weak | A finger can be easily pressed up to 10 mm into the sample. |
| Moderately weak | The soil can be molded by light pressure |
| Moderately solid | The soil can't be molded with fingers, but can be hand rolled to strings with a thickness of 3 mm. |
| Solid | The thumb can easily press the soil. |
| Moderately hard | The thumb can leave a shallow imprint. |
| Hard | The soil crumbles and breaks when rolled to string with a thickness of 3 mm. |
| Very hard | With the thumbnail a nick can be made into the sample. |
| Fixed | The soil can't be reshaped, but crumbles under pressure. |
References
- NEN-EN-ISO 14688-1:2019
