Standard proctor test Modified proctor test Dry density (kg/m') | Water content (%) Dry density (kg/m' ) Water content (%) 1691 9.3 1873 9.3 1715 11.8 1910 12.8 1755 14.3 1803 15.5 1747 17.6 1699 18.7 1685 20.8 1641 21.1 1619 23 a) Plot the compaction curves (both standard and modified in one graph). b) Establish the maximum dry density and optimum water content for each test.

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Q: Marshall sample is compacted at 75 blows. * O True O False

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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.