Calculation steps of compactness measurement by sand filling method Do not need to write detailed steps, just write the known water content, vertebral mass, cylinder + sand mass, sand density, calculation steps. Calculate wet density, dry density, compactness!

Calculation steps of compactness measurement by sand filling method Do not need to write detailed steps, just write the known water content, vertebral mass, cylinder + sand mass, sand density, calculation steps. Calculate wet density, dry density, compactness!

Cylinder + sand mass - residual cylinder + sand mass - vertebral body sand weight = sand mass in test pit
Sand mass / sand density in test pit = Test Pit volume
Wet soil mass / test pit volume = wet density
Wet density / (1 + moisture content%) = dry density
Dry density / maximum dry density = compactness
The maximum dry density is obtained from laboratory test