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i <br /> IUNIFIED SOIL CLASSIFICATION - ASTM D2487-85 <br /> i <br /> MAJOR DIVISIONS TYPICAL NAMES <br /> G W �.'~ WELL GRADED GRAVELS WrIU OR <br /> WITHOUT SAND,LITTLE OR NO PINES <br /> GRAVELS CLEAN GRAVELS WITH <br /> LTTT LE OR NO FINES <br /> m i6 p y•: •- POORLY'GRADED GRAVELS WI.H OR <br /> r� MORE MAN � `•4. ,• WTTHOL"T SAND,LITTLE OR NO FINES <br />' ..I °t HALF COARSE <br /> e FRACIT0141S <br /> p o <br /> LARGER THAN G M SILTY GRAVELS,SILTY GRAVELS <br /> to +� No 4 SIEVE WITH SAND <br /> a SIZE GRAVELS WIT h OVER <br /> H m III%FINES <br /> G C CLAYEY GRAVELS.CLAYEY <br /> Z . :TRAVELS WITH SAND <br /> i o S W ••�•/• WELL GRADED SANDS WITH OR WITH- <br />' C7 x ti • • • OUT GRAVEL.LTITLE OR NO FINES <br /> CLr—A N.^.AND S XTTH • • <br /> Icao LITTLE OR NO FL'd°C <br /> y < z SANDS .,.,. S P a �s • • POORLY GRADED SANDS WITH OR <br />' = t o WITHOUT GRAVEL,LTITL.E OR NO FINES <br /> � F z o r • <br /> U m HAL COARSE S M • • . SILTY SPIMS WITH OR <br /> a r FMCIIONIS • a WITHOUT GRAVEL <br /> p SMAUER SANDS WITH OVER • • <br /> THAN No 4 12%FINES • • • <br /> SIEVE SIDE S C CLAYEY SANDS WTITi OR <br /> • • • <br /> WITHOUT GRAVEL <br /> M Z, INORGANIC SILTS AND VERY FINE SANDS, <br /> ROCK FLOUR,SILTS WI-I"H SANDS AND <br /> z SILTS avd CLAYS <br /> .. C L INORGANIC C1.F YS OF LOW TO MEDIUM <br /> cu LIQUID La1dIT SU°'°OR LESS PLASTICITY,CLAYS WITH SANDS AND <br /> G&LUT.S."AN CLAYS <br /> n L F ORGANIC SILTS OR CLAYS OF <br /> 96 C LOW PL.ASTTCTTY <br /> Z `• M g INORGANIC SILTS,MICACEOUS OR DIA- <br /> d x a TOMACIOUS,FINE SANDY OR SILT Y SOILS, <br />' z z SILTS and CLAYS L� s <br /> c: <br /> x z C g oorzA INORGANIC CLAYS OF HIGH PLASTICITY, <br /> W r LIQUID LIMIT GREATER THAN 50% FAT CLAYS <br />' z = <br /> O g � � ORGANIC SILTS OR CLAYS OF MEDIUMd f TO HIGH FLAS nCTTY <br /> 0 <br />' ffirB.LY ORGANIC SOILS P tPOEARTSAND OTHER HIGHLY ORGANIC <br />' WH 'ne O o+c t76 Modesto ` O'1`^.e,�c <br />