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140 <br /> 135 CURVE NUMBER <br /> MAXIMUM DRY DENSITY <br /> 129.0 PCF <br /> OPTIMUM MOISTURE CONTENT <br /> a_n %DRY WEIGHT <br /> 130 <br /> 125 <br /> c� <br /> 120 <br /> v <br /> L <br /> 0 <br /> O� <br /> TO <br /> 115 (� - <br /> G� <br /> 7L <br /> a <br /> O <br /> 110 <br /> 105 <br /> U <br /> d <br /> i 100 <br /> N <br /> Z <br /> W <br /> G 95 <br /> 0 5 10 15 20 25 30 35 <br /> MOISTURE CONTENT% <br /> Sample Description GRAVEL, CLAYEY, SANDY ((,c) LIQUID LIMIT 25 % <br /> PLASTICITY INDEX 9 % <br /> Location_#1 MINE GRAVEL 50 <br /> SAND 18 % <br /> Compaction Test Procedure ASTM D 1557-91 SILT AND CLAY 32 % <br /> METHOD C <br /> Compaction <br /> JOB NO. 21 .006 Test Results FIG. 3 <br />