sands
clays
gravels
highly organic soils.
2.65
2.72
2.85
2.9
The phenomenon of quicksand generally occurs in the cohesionless soil
At critical hydraulic gradient, the saturated sand becomes quick
The critical gradient depends on the void ratio and the specific gravity
All the above
show dilatancy
swell when moist
possess high strength when dry
disintegrate easily.
quantity of seepage
hydrostatic pressure
seepage pressure
all the above.