1. A sandy soil has maximum and minimum dry unit weights of 18.08 kN/m3 and 14.46 kN/m3, respectively, and a dry unit weight of compaction in the field of 16.35 kN/m3. Estimate the following:
a. The relative compaction in the field
b. The relative density in the field
2. A silty clay soil has a plasticity index (PI) of 14. Estimate the optimum moisture content and the maximum dry unit weight of the soil when compacted using the procedure of:
a. Standard Proctor test
b. Modified Proctor test
Use Eqs. (16.11) and (16.12).