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UNIFIED SOIL CLASSIFICATION - ASTM D2487-85 <br />;vF <br /> MAJOR DIVISIONS TYPICAL NAMES <br /> G W ;i:' - WELL GRADED GRAVELS WITH OR <br /> = `' WITHOUT SAND,LITTLE OR NO FINES <br /> GRAVELS CLEAN GRAVELS WITH WITHOUT <br /> • <br /> x LITTLE OR NO FINES <br /> w G P I' POORLY GRADED GRAVELS WITH OR <br /> vs �, MORE THAN w:�: WITHOUT SAND,LITTLE OR NO FINES <br /> HALF COARSE R' <br /> •• FRACTION IS <br /> O a LARGERTHAN G M SILTY GRAVELS,SILTY GRAVELS <br /> V2 v w No 4 SIEVE WITH SAND <br /> > SIZE GRAVELS WITH OVER <br />' p = 12%FINES <br /> _ G C CLAYEY GRAVELS,CLAYEY <br /> z GRAVELS WITH SAND <br /> a < S w �0 0 WELL GRADED SANDS WITH OR WITH- <br />' 0 x . . OUT GRAVEL,LITTLE OR NO FINES <br /> CUAN SANDS WITH <br /> x1 z e LITTLE OR NO FINES <br /> m < z SANDS S P r • 0• • POORLY GRADED SANDS WITH OR <br /> x • • WITHOUT GRAVEL,LITTLE OR NO FINES <br /> p < MORE THAN • • <br /> U m x HALF COARSE S M • SILTY SANDS WITH OR <br /> r FRACI'IONIS • • WITHOUT GRAVEL <br />' o SMALLER SANDS WITH OVER • • <br /> THAN No 4 12%FINES /@WITHOUT <br /> SIEVE SIZF S C CLAYEY SANDS WITH OR <br /> GRAVEL <br /> f • i <br /> ee M L INORGANIC SILTS AND VERY FINE SANDS, <br /> ROCK FLOUR,SILTS WITH SANDS AND <br /> z SILTS and CLAYS GRAVELS <br /> ,a > C L INORGANIC CLAYS OF LOW TO MEDIUM <br /> LIQUID LIMIT 50%OR LESS PLASTICITY,CLAYS WITH SANDS AND <br /> GRAVELS-LEAN CLAYS <br /> 0 N <br /> r V O L ` 1 ORGANIC SILTS OR CLAYS OP <br /> w P 1 1 1 1 LOW PLASTICITY <br /> Z < <br /> .. x M A INORGANIC SILTS MICACEOUS OR DIA- <br /> d e TOMACIOUS,FINE SANDY OR SILTY SOILS, <br /> P4 z x SILTS and CLAYS C s <br /> [� 6 <br /> z z C H INORGANIC CLAYS OF HIGH PLASTICI'T'Y, <br /> LIQUID LIMIT GREATER THAN 54% FAT CLAYS <br /> z s <br />' •• w F ,� i <br /> LTS <br /> a <br /> O I3 TO H GH PLASTICITCLAYS OF MEDIUM <br />' HIGHLY ORGANIC SOILS P t PEAT AND OTHER HIGHLY ORGANIC <br /> SOILS <br /> FInc.- 2.AW7672go.MM�to. S 7-6 9 <br /> Aug. oa3 <br />