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Drafted: Dare: Checked: Dere : Approved: Dare: Form DFT-1.08 (7/83) Job No. <br /> 1 <br /> 3 <br /> GRAIN SIZE CURVES <br /> r <br /> U.S.STANDARD SIEVE NUMBERS U.9.STANDARD SIEVE OPENIN091N INCHES HYDROMETER <br /> r 100 3 z 4h r 3'. 'h 1b 1/. a e 10 a re 20 0o w so 70 100 rw zoo 0 <br /> a <br /> x <br /> 90 10 <br /> 80 20 / <br /> 70 30 t l <br /> L 0 <br /> 3 <br /> .LM <br /> 60 ao T <br /> m <br /> T <br /> m 50 50 `m <br /> C p <br /> UL U <br /> m 40 60 m <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 I Fine Coarse I Medium I Flne <br /> CURVE BORING NO. PENETRATION, ft MATERIAL <br /> a B-3/B-5 0-8 Silty fine to medium SAND (SM) <br /> (blend) <br /> -0 + g_3 O_g Silty fine to medium SAND (SM) <br /> r <br /> D r ' <br /> --I <br /> m <br /> N <br /> N <br />