| Table 1 Classification of soil particles.1 | |||||||||
| Particle | Diameter (mm) | ||||||||
| Coarse sand | 0.5-1 | ||||||||
| Medium sand | 0.25-0.5 | ||||||||
| Fine sand | 0.1-0.25 | ||||||||
| Very fine sand | 0.05-0.1 | ||||||||
| Silt | 0.002-0.05 | ||||||||
| Clay | <0.002 | ||||||||
1The International Classification (Atterberg) System refers only to soil particles under 2 mm:
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