A soil sample is prepared in the laboratory by mixing a certain amount of dry soil with 10.5 wt% water. The relative density of the grains of the material is equal to 2.7.
a) Determine the mass of the moist mixture required to produce, by compression, a cylindrical sample of diameter 150mm and height of 125mm, a 5% voids filled with air.
b) Determine the void ratio and dry unit weight of the compacted sample.