The following data were recorded in an oedometer test on a clay sample 100 mm in diameter and 30 mm high.
At the end of the test, the wet mass of the sample was 507.3 grams and, after oven-drying, its dry mass was 412.5 grams. The specific gravity was 2.65.
(a) Calculate the void ratio at the end of the test.
(b) Calculate the void ratio at the end of each loading step.
(c) Calculate the initial thickness of the soil sample from the initial void ratio and compare this with the initial thickness.
(d) Determine mv between σ'z = 50 kPa and σ'z = 150 kPa.