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UNIFIED SOIL CLASSIFICATION - ASTM D2487-85 <br /> MAJOR DIVISIONS TYPICAL NAMES <br /> G W �: WELL GRADED GRAVELS WITH OR <br /> WITHOUT SAND,LITTLE OR NO FINES <br /> GRAVELS CLEAN GRAVELS WITH •'- - ••+ <br /> LITTLE OR NO FINES ; % <br /> w G P •-' `j, POORLY GRADED GRAVELS WITH OR <br /> ry1 m MORE TFTAN �4 WITHOUT SAND,LITTLE OR NO FINT.S <br /> a m HALF COARSE a s <br /> •• < FRACTION IS <br /> p n L4RGERTHAN G M SILTY GRAVELS,SILTY GRAVELS <br /> 0 u w No 4 SMVE Iti WITH SAN13 <br /> SIZL GRAVELS WITH OVER <br /> A w w 12%FINES <br /> w G C CLAYEY GRAVELS,CLAYEY <br /> Z GRAVELS WITH SAND <br /> a < P S W 1� WELL GRADED SANDS WITH OR WITH- <br /> CS x n t I • OUT GRAVEL,LITTLE OR NO FINES <br /> CLT-AN SANDS WITH • <br /> w z o LITTLE:OR NO FINES <br /> to < z SANDS S P 0 9 r r POORLY GRADED SANDS WITH OR <br />' x x • r WITHOUT GRAVEL,LITTLE OR NO FINES <br /> e Z <br /> p < MORE;}IAN <br /> U w x HALF COARSE S M • • SILTY SANDS WITH OR <br /> FRACISONIS • • WITHOUT GRAVEL <br />' o <br /> SMALLER E SANDS WITH OVER • • <br /> THAVNo 1 12%FINES ♦ • <br /> SIEVE SIZE S C CLAYEY SANDS WITH OR <br /> WITHOUT GRAVEL <br /> g d M L INORGANIC SILTS AND VERY FIVE SANDS, <br /> w ROCK FLOUR,SILTS WITH SANDS AND <br /> z SILTS and CLAYS <br /> ryl - w <br /> wW > C L INORGANIC CLAYS OF LAW TO MEDIUM <br /> w LIQUID LIMIT SO'So OR LESS PLASTICITY,CLAYS WITH SANDS AND <br /> LS-LEAN CLAYS <br /> p v, <br /> r W h O L ` ORGANIC SILT'S OR CLAYS OF <br />' pL6 P 1 1 1 1 LOW PLASTICITY <br /> w � P <br /> Z < � <br /> x M R INORGANIC SILTS MICACEOUS OR DIA- <br /> Q o TOMACIOUS,FINE SANDY OR SILTY SOILS, <br />' 9 z z SALTS And CLAYS <br /> x z C H INORGANIC CLAYS OF HIGH PLAS'T`ICITY, <br /> LIQUID LIMIT GREATER CHAN 50% FAT CLAYS <br />' z w <br /> k, oe O H // O HIGH PLASTICITY <br /> O CLAYS OF MEDIUM <br /> 0 <br />' HIGHLY ORGANIC SOILS P t PEAT AND OTHER HIGHLY ORGANIC <br /> SOILS <br /> t <br /> Mc P ox 576 *,to,QA 91311,6711 <br /> Ml <br />