In a laboratory falling head test, the recorded data are as below: Diameter of the tube = 20 mm Diameter of the cell = 100 mm Length of the sample = 1000 mm The head measured from the top level of the sample dropped from 800 mm to 600 mm within 1 hr and the temperature of the water was 30°C. The coefficient of permeability of the soil at 20°C is dynamic viscosity of water at 20°C = 1.005 × 103 N-s/m2 and the dynamic viscosity at 30°C = 0.801 × 10 3 N-s/m²). %3D (Take

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Laboratory Determination of Hydraulic Conductivity

Hydraulic conductivity is the measure of flowability of water inside the soil in the presence of a hydraulic gradient. The hydraulic gradient is defined as the difference in the water heads in the soil, which induces a water motion. In simple terms, a hydraulic gradient is the presence of a potential that induces a flow of water.