Compaction Test
1. The energy ratio in the modified Proctor test to the standard Proctor test is approximately ____.
2. Which of the following is true for pure sandy soils regarding compaction?
3. The 95% saturation line and the 5% air voids line are ____.
4. Which of the following factors affect the compaction of a soil?
5. In a compaction test, as the compactive effort increases:
6. The process of expulsion of air from the soil voids by mechanical means is called:
7. For a soil with G = 2.70, calculate the theoretical maximum dry unit weight at a water content of 12% (assuming zero air voids).
8. Compaction of an embankment is carried out in 500 mm thick layers. If the required number of passes was calculated as 25 to meet the standard effort, and the layer thickness is reduced to 250 mm, the new number of passes required (all other factors constant) would be approximately:
9. In the field, which equipment is most suitable for compacting clayey soils?