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U� <br /> UNIFIED SOIL CLASSIFICATION - ASTM D2487-85 <br /> MAJOR DIVISIONS TYPICAL NAMES <br /> G w ~•+: WELL GRADED GRAVELS WITH OR <br /> .. WITHOUT SAND,LITTLE OR SIO FINES <br /> GRAVELS CLEAN GRAVELS WITH <br /> LTTTLE op—No FINES 4%; <br /> G P •;: POORLY GRADED GRAVELS WITH OR <br /> rn y MOHALF COARSE �RE THAN •• WITHOUT SAND,LRTL.E OR NQ FINES <br /> 3 � •r4�.. <br /> t FRACTION IS <br /> 0 o LARGER THAI G KSILTY GRAVELS,SILTY GRAVELS <br /> n u m Na.3 SIEVE WITH SAND <br /> > SIZE GRAVELS WITH OVER <br /> 121/6 FINES <br /> G C CLAYEY GRAVELS,CLAYEY <br /> y z 40 GRAVELS WITH SAND <br /> < S w • • WELL GRADED SANDS WITH OR WTTH- <br /> • • • OUI GRAVEL,LITTLE OR NO FINES <br /> CLEAN SANDS WITH • • <br /> 2 z e LITTLE OR NO FLYES <br /> r < z SANDS 5 P • V• • POORLY GRADED SANDS WITH OR <br /> . _ + 0 WITHOUT GRAVEL,LITTLE OR NO FIVES <br /> C < MORE THAN 1:10101*= HALF COARSE S rI . • SILTY SANDS WITH OR <br /> FRACnON IS • WITHOUT GRAVEL <br /> ZIAII.F,R SANDSWITH OVER <br /> i THAN NO.a 12%FINES • � • <br /> SIEVE SIZE S C • • CLAYEY SANDS WITH OR <br /> WITHOUT GRAVEL <br /> • • e <br /> M L INORGANIC SILTS AND VERY FINE SANDS, <br /> ROCK FLOUR,SILTS WITH SANDS AND <br /> x SILTS and CLAYS GRAVELS <br /> C L INORGANIC CLAYS OF LOW TO MEDIUM <br /> �+ LIQUID LIMIT 50%OR LESS PLASTICIIY,,CLAYS WITH SANDS AND <br /> C ti <br /> GRAVELS,LEAN CLAYS <br /> N O L i ORGANIC SILTS OR CLAYS OF <br /> LOW PLAS nC1T-Y <br /> z < r <br /> H INORGANIC SILTS,MICACEOUS OR DIA- <br /> o TOMACIOUS,FINE SANDY OR SILTY SOIL S, <br /> z z SILTS and CLAYS TIC SILTS <br /> = Z C H INORGANIC CLAYS OF HIGH PLASTICITY, <br /> LiQUTD LIMIT GRATER THAN 50% FAT CLAYS <br /> O H �� ORGANIC SILTS OR CLAYS OF MEDIUM <br /> o TO HIGH PLASTICITY <br /> HIGHLY ORGANIC SOILS P t PEAT AND OTHER HIGHLY ORGANIC <br /> SOILS <br /> Figure 4 <br /> Uniform Soil Classification <br /> WFLF fr+e PDjklm ?93 <br />