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UNIFIED SOIL CLASSIFICATION - ASTM D2487-85 =� <br />' MAJOR DIVISIONS TYPICAL NAMES <br /> G W ;..;, WELL GRADED GRAVELS WITS OR <br /> ' WITHOUT SAND,UTILE OR NO FINFS <br /> GR&VELS CLEAN GRAVELS%TM <br /> w LTITI.E ORNO G P . . POORLY GRADED GRAVELS WrM OR <br /> m E THAN •• y:t WrMOUT SAND,LTr=OR NO FINES <br /> ,; nt HALF COARSE <br /> .. < FRACTION L4 <br /> c O L 'ELAN G M SILTY GRAVELS,SILTY GRAVELS <br /> to v m No.4 SMVE WITH SAND <br />' a SME GRAVELS WITH OVER <br /> 12%FINES <br /> G C CLAYEY GRAVELS,CLAYEY <br /> Z m GRAVELS WITH SAND <br />' x < o s w .•+�` WELL GRADED SANDS WITH OR WITH- <br /> G: OUT GRAVER LITTLE OR NO FINES <br /> CLEAN SANDS WITH <br /> LITTLE OR NO FINES <br /> H < z SANDS S P P r POORLY GRADED SANDS WITS OR <br /> 94 x • s WITHOUT GRAVEL,LLTTLE ORNO FINES <br /> � s • <br /> C < hdORH S m • • ' S�MTY SANDS WITH OR <br /> ' f� m z FiA[dr <br /> COARSE <br /> FRACITONI.q • • WITHOUT GRAVEL <br /> o SMAi*M SANDS WITH OVER • • <br /> CHANNo.4 12%FINES r r s CLAYEY SANDS W1TH OR <br /> smvs Sty s C • • <br /> I WTITSOLTT GRAVEL <br /> • <br /> � M L INORGANIC SILTS AND VERY FINE SANDS. <br /> m ROCK FLOUR.SILTS WITH SANDS AND <br /> ' z SILTS and CLAYS <br /> C L INORGANIC CLAYS OF LOW TO M=IUM <br /> CLAYS WITH SANDS AND <br /> .+ w LIQUID TAWC 50%OR LESS PIAS" LS.LEAW MAYS, <br /> 6 m <br /> O L 1 1 1 ORGANIC SILTS OR CLAYS OF <br /> I 1 1 1 LOW PLASTICITY <br /> �; a o <br /> � � e <br /> x < � <br /> .» x I►L H INORGANIC STLTS.:vIICACEQUS OR D1A- <br /> ' TOMACIOUS,FINE SANDY OR SILTY SOIIS, <br /> a z z SILTS and CLAYS SILTS <br /> c� < <br /> = z C H INORGANIC CLAYS OF HIGH PLASTICITY, <br /> LIQUID LIMIT GREATER THAN 50% FAT CLAYS <br /> Z x <br /> m " O H �' ORGANIC SILTS OR CLAYS OF MEDIUM <br /> o � TO HIGH PLASTICrri <br /> ' WGHLY ORGANIC SOILS P t PEAT AND OTHER HIGHLY ORGANIC <br /> SOILS <br /> r <br />