Soil name

Selecting a new soil will restart the test.

Click on the Info tab for instructions on how to run the simulation.

Click on the Graph or Data tab to see the results.

Air content (0 ~ 30%) %


The dry soil mass is 2500 gm

Compaction graphThe aim of the compaction test is to determine the optimum water content, Wopt, which produces the maximum dry density, rd(max), after compaction.

Begin by compacting samples of with 300ml, 400ml and 500ml of water.

  1. What is the water content as a % of the mass of dry soil?
  2. Which of these three give the maximum dry density?
  3. What is the air content at each density?
  4. What is the optimum water content?

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