2A sample of soil obtained from a borrow pit has a wet weight of 16 kg. The total volume occupied by the sample when in the ground was 8490cm. A small portion of the sample is used to determine the water content. The wet sample weighs 150g. After drying, it weights 125g (a) What is the water content of the sample? (6) Determine the wet and the dry unit weights of the soil in the borrow pit.

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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.