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Compaction, an artificial densification of soils, is a simple ground improvement technique, where the soil is densified through external compactive effort. It involves the application of mechanical energy to a soil to rearrange the particles and reduce the void ratio. It is a process of increasing the density of soil in a fill by reducing its void space by the expulsion of air. Compaction is usually achieved by subjecting the soil to a changing state of stress such as few repetitive cycles of ramming, rolling or vibrations. This results in a decrease in the volume of the air voids and an increase in the density of the soil. Learning Outcome Describe Compaction Test theory and its use Describe the different types Perform the Compaction Test Plot necessary graphs Determine Maximum Dry Density and Optimum Moisture Content Write a report on the test exercise
