1.) Classify the following soils using the Unified Soil Classification System (USCS) and plot each of their respective grain size distribution curves on a single semi-log scatter plot. Tables 1 and

2 have all necessary data for classification. Table 1. Sieve Analysis Data for All Soils Diam (mm) 4.75 2 1 0.5 0.15 0.075 0.05 0.003 0.002 Liquid Limit Soil A Plastic Limit 100 100 100 100 93 84 75 12 8 % Finer than by Mass Soil B Soil C 26 100 98 ΝΑ 95 ΝΑ 86 24 2 NA Soil A Soil B NA 90 75 62 48 28 Table 2. Atterberg Limits for Soils in Table 1 16 9 10 NA NA Soil C 46 34 Soil D 60 34 28 24 18 15 10 NA ΝΑ Soil D 37 18