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i <br /> i UNIFIED SOIL CLASSIFICATION - ASTM D2487-85 <br /> i MAJOR DIVISIONS TYPICAL NAMES <br /> G W .p_~ ,. WELL GRADED GRAVELS WITH OR <br /> i WITHOUT SAND,LITTLE OR NO FINES <br /> GRAVELS CLEC—N GRAVELS WITH ; <br /> a LITTLE OR NO FINES POORLY <br /> rn MORE THAN G P •. WITHO JT SAND,,LITTLE OR NO WITH <br /> i <br /> Y.ALF COARSE <br /> - < FRACTION IS <br /> p o LARGERTHAN G M SILTY GRAVELS,SILTY GRAVELS <br /> m c) w No 4 SIEVE WITH SAND <br /> i a SIZE GRAVELS WITH OVER Itl . <br /> q w w 12%FINES <br /> W - G C CLAYEY GRAVELS CLAYEY <br /> w GRAVELS WITH SAND <br /> .. w <br /> i <br /> x < e S W �1�•� WELL GRADED SANDS WITH OR WITH- <br /> a N • OUT GRAVEI,LITTLE OR NO FINES <br /> CLEAN SANDS WITH <br /> fix o LITTLE OR NO FINES <br /> im < SANDS S P • ` r POORLY GRADED SANDS WITH OR <br /> x c + • WITHOUT GRAVEL,LITTLE OR NO TINES <br /> C [ MORE THAN <br /> U x HALF COARSE S m • • SILTY SANDS WITH OR <br /> i a F FRACTIO141S • • WITHOUT GRAVEL <br /> o SMALLER SANDS WITH OVER • • <br /> * THAN No 4 12%FINES • ♦ • <br /> SIEVE SIZE S C ♦ • • CLAYEY SANDS WITH OR <br /> WITHOUT GRAVEL <br /> x ML INORGANIC SILTS AND VERY FINE SANDS, <br /> ROCK FLOUR,SILTS.WITH SANDS AND <br /> z SILTS and CLAYS <br /> C L INORGAI4'IC CLAYS OF LOW TO MEDIUM <br /> LIQUID LIMIT 50%OR LESS PLASTIC.TY,CLAYS WITH SANDS AND <br /> C y — CLAYS <br /> y O L ` ORGANIC SILTS OR CLAYS OF <br /> LOW PLASTICITY <br /> z < r <br /> MH INORGANIC SILTS,MICACEOUS OR DIA- <br /> LiTOMACIOUS,FINE SANDY OR SILTY SOILS,z z SILTS and CLAYS C SILTS <br /> L e <br /> x x C H INORGANIC CLAYS OF HIGH PLASTICITY <br /> LIQUID LIMIT GREATER THAN 50% FAT CLAYS <br /> x W <br /> H / ORGANIC SILTS OR CLAYS OF MEDIUM <br /> TO HIGH PLASTICITY <br /> s <br /> i HIGHLY ORGANIC SOILS P e PEAT AND OTHER HIGHLY ORGANIC <br /> sons <br /> ' F nr o 0 er S76 9 t 7 672 u Z uvi <br />