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Drafted: Data : Checked: Date: Approved: Date: Form DFT-1.08 (7/83) Job No. <br /> 3 <br /> GRAIN SIZE CURVES <br /> U.S.STANDARO SIEVE NUMBERS U .STANDARD 31EVE OPENINGS IN INCHES HYDROMETER <br /> r 100 3 Y 11h 1 1Ih '/• a e e 10 1118 PO 30 40 30 70 100 lb 200 <br /> s 0 <br /> z <br /> ° 90 10 <br /> 80 20 <br /> 70 30 r 1 <br /> a <br /> L m <br /> O1 > <br /> 3 60 40 > <br /> T <br /> m <br /> m <br /> `m 50 50 am <br /> C o <br /> LL 0 <br /> m 40 60 m <br /> U <a <br /> 30 70 <br /> 20 80 <br /> 10 90 / <br /> 0 100 <br /> 100 50 10 5 1.0 0.5 0.1 0.05 0.01 0.005 0.001 <br /> Grain Size In Millimeters <br /> GRAVEL SAND SILT or CLAY <br /> Coerce Fine Coerce Medium Fine <br /> CURVE BORING NO. PENETRATION, ft MATERIAL Z vim_ • <br /> o B-1 10.5 Poorly graded medium SAND, withSS SP) ` <br /> r <br /> i E`ni D <br /> 171 <br />