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UNIFIED SOIL CLASSIFICATION - ASTM D2487-85 <br /> MAJOR DIVISIONS TYPICAL NATNES <br /> G W :i ••�• WELL GRADED GRAVELS WITH OR <br /> . -• WrMOUT SAND.Lrf-IT-.,OR NO FINES <br /> GRAVELS CLEAN GRAVELS WI H <br /> LrrrL.E OR NO FINES . .; <br /> G P =:: POORLY GRADED GRAVELS WrM OR <br /> CA MORS TRAN ; `:� WrMOUr SAND,LM7L.E OR NO MIM <br /> •: t HAlx COARSE <br /> < FRACTION IS <br /> LARGER THAN G K SMTY GRAVELS,SILTY GRAVELS <br /> v Na s SIEVE WrM SAND <br /> > SI2Z GRAVELS WITH OVER <br /> m 12%FINES <br /> G C CLAYEY GRAVELS,CLAYEY <br /> GRAVELS WITH SAND <br /> w i <br /> 1 O <br /> < S w ••!•• WELL GRADED SANDS WITH OR WTTH- <br /> z <br /> CLEA�`l SANDS WrrH •• • • OUT GRAVEL,L[TI'L.E OR NO FINES <br /> W z ° LITTLE OR NO FINES <br /> < z SAYDS S P • V • POORLY GRADED SANDS WITH OR <br /> • WI'T'HOUT GRAVEL,LITTLE OR NO FINES <br /> H z 1 s <br /> < VCRE THAN <br /> lAhl <br /> = HALF COARSE S M SILTY SANDS WrrH OR <br /> + N FRACTION <br /> IS . . WITHOUT GRAVEL <br /> s <br /> o 2WEA E SANDS WITH OVER • • <br /> THAN No.4 12%FINES • • • <br /> SIEVE Srz s S C • CLAYEY SANDS WITH OR <br /> WITHOUT GRAVEL <br /> M L INORGANIC SILTS AND VERY FINE SANDS, <br /> x <br /> SILTS and CLAYS ROCK FLOUR SILTS WrM SANDS AND <br /> ,• > C L INORGANIC CLAYS OF LOW—10 MEDIUM <br /> Lu <br /> LIQUID LIMrr 50%OR LESS PLASTICITY,CLAYS WITH SA,YDS AND <br /> O " — RAVE N CLAYS <br /> O L ORGANIC SILTS OR CLAYS OF <br /> CAW PLASTICITY <br /> w ae I <br /> z < <br /> H INORGANIC SILTS,MICACEOUS OR DIA- <br /> ° TOMACIOUS,FINE SANDY OR SILTY SO[LS, <br /> _ = SILTS and CLAYS C SrLTS <br /> v < <br /> s z C H INORGANIC CLAYS OF HIGH PLASTICITY, <br /> f < LIQUID L DAIT GREATER THAN 50% FAT CLAYS <br /> s <br /> w t• � � i <br /> o O H ORGANIC SILTS OR CLAYS OF MEDIUM <br /> TO HIGH PLASTICITY <br /> HIGHLY ORGAN71C SOILS P t PEAT AND OTHER HIGHLY ORGANIC <br /> SOILS <br /> AHF rnr <br />