Description & classification
Basic characteristics of soils
Soil as an engineering material
Size range of grains
Identification
Shape of grains
SAND grains
CLAY grains
Specific surface
Composition of grains
Structure or fabric
Origins, formation and mineralogy
Origins of soils from rocks
Weathering of rocks
Clay minerals
Transportation and deposition
Loading and drainage history
Grading and composition
Coarse soils
Particle size tests
Simulation
Typical grading curves
Grading characteristics
Sieve analysis example
Fine soils
Consistency
Simulation
Plasticity index
Plasticity chart
Activity
Specific gravity
Volume-weight properties
Volume: the soil model
Simulation
Degree of saturation
Air-voids content
Masses of solid and water
Densities and unit weights
Laboratory measurements
Water content
Unit weight
Field measurements
Current state of soil
Deposition and erosion
Ageing
Density index
Liquidity index
Predicting stiffness and strength
BS system for description and classification
BS description system
Definitions of terms
British Soil Classification System