Question

Q1. Complete the following table, provided for a sandy soil (G_s =2.65). Accordingly, find the dry unit weigh of this soil.

	Mass (t)	Vol. (m3)
Air		13.46
Water	13.25
Solids		50.00
Total

Q2. A soil specimen has a moisture content of 21%, a void ratio of 0.6, and a specific gravity of 2.7. Determine the bulk unit weight of this soil.

Q3. If we are dealing with a very soft clay soil in the site, which field test equipment will be recommended to apply?

Q4. In order to determine the consolidation coefficient, which laboratory apparatus is appropriate?

Q5. In a triaxial test, the deviator stress is 100 kPa and the effective confining pressure is 50. Find the value of effective major principal stress.

Q6. A coarse-grained soil contains: 35% sand, 47% gravel and 18% clay.

The C_u = 6 and C_c = 1.8. What is the USCS symbol of this soil?

Answer 1