GIVEN: FOLLOWING RESULTS OF LABORATORY GRADATION TESTS PERCENT PASSING d30 -#4 64% -#200 23.4% doo 1.53 mm dio 0.024 mm 0.11 mm WL 38% WP 28% PROBLEM: CLASSIFY THE SOIL USING THE UNIFIED SOIL CLASSIFICATION SYSTEM (USCS) #200: PI: -% GRAVEL - % SAND -% SILT/CLAY UNIFORMITY COEFFICIENT COEFFICIENT OF CURVATURE Cu = Cc = Cu = Cc = PLASTICITY CHART CLASSIFICATION: USCS: DESCIPTION