Aquaculture Engineering

Soil and its properties - Particle size classification

Unit 3- Soil and its properties

Soil and its properties

Classification of Soil - Particle size classification
In this system, soils are arranged according to the grain size.
Usually four types

• Clay
• Silt
• Sand
• Gravel

These terms are used only as designation of particle size and do not signify the naturally occurring soil types.

• Clay < 0.002 mm
• Silt – 0.002 to 0.02m
• Sand 0.02 to 2 mm
• Gravel > 2 mm