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Extrude the soil sample from the sampler, generally thin-walled Shelby
tube.
the initial moisture content .
the specific gravity of the soil.
With the toggle switch in the down (closed) position.
Determine the coefficient of consolidation (cv) using Casagrande’s logarithm of time fitting method.
ΣΔH for applied pressure = ΣΔH of all previous pressures + ΔH under applied pressure
depends on the pressure
It is the slope of time vs settlement curve beyond the end of primary consolidation