4. A soil sample was taken to the lab and prepared for sieving. The technician sieved the soil and performed Atterberg limit tests on the finer fraction of that soil (passing the # 40 sieve). These were found to be 80 and 30. The sieving data for the soil are presented below. sieve mass of mass sieve + soil (gr) (gr) 20 139.22 139.32 136.75 265.40 4.75 122.10 158.33 2 121.05 162.39 0.85 115.65 138.91 0.42 112.12 128.54 0.25 110.77 121.34 0.15 109.56 117.99 0.075 108.10 118.20 77.50 137.98 d sieve # (mm) 20mm 6.4mm 6.4 4 10 20 40 60 100 200 pan a. Use Excel to Plot the GSD of the soil. b. Use the USCS to classify the soil (show work). Provide the group symbol.

Fig: 1