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• ��1 1 US - - <br /> I-A <br /> `l UNIFIES SOIL : n�.,, <br /> L CL4,S IFICATION SYSTEM <br /> MAJOR DIVISIONS cI <br /> .; �SYMECLS' TYPICAL NAMES <br /> GRAVEL,$ GW �.'�? Nell graded gravels ar gravel-Tmtd mixtures,littfe or no fines <br /> o <br /> 1 v+ GP o LI POOrly graded gr"s or gravel-sand mixturts,little or no Rnes <br /> �..• " <br /> V) � MORE THAN I/2 qF <br /> M� a 6 COARSE FZrACTION� G �� Siity-9ravels, grnrd-rani-silt matures <br /> }�. z 5t Na 4 SIEVE SIZE <br /> `fir GC CleYey grovefs, gravel-sand-clay mixtures <br /> C7 <br /> t:a + <br /> t 4 ta` SANDS Sw �:::;:..� Weft graded sands or gravelly sands,little or no Itnes <br /> vp I••• �f <br /> Poorly y graded sands or gravelly sends, little or no fines <br /> k a t7 a MORE-MAN 1/2 OF Sf 11 ; <br /> COARSE FRACTM C I S"L1tY sands, sand-slit mi tures <br /> NQ 4 STEVE SIZE <br /> SC Clayey sands,sand-clay mtatures <br /> 7. M)+ Inarganic silts and vary fine sands,rack If—,silty tr clayey <br /> Is —1 H SILTS 8 CLAYS I I fine sands or clayey sills with slight plasticity <br /> Ow <br /> CL inarganic clays of tow to med um plasticity,gravelly clays, <br /> Q raLL C�O ,+ sandy clays, silty clays,lean toys <br /> lsao <br /> Z N GL �1 I organic silts and organic silty clays of low plos:icty <br /> CO v MH ! I inorganic silts,micacecus adiaton,orrous fine scdyarsilly <br /> SILTS 8 CLAYS ! + soils,elastic sills <br /> z� Chi�. Incrganic clays of high pfaslicily,tat Gays <br /> I.. L— <br /> ON Crganae clays at medium to high plasticity,crgcnic silty clays, <br /> -: argtnic silts <br /> HIGHLY ORGANIC SCILS PfEEEp_a! and ether highly organic sails <br /> Lu <br /> d <br /> ��FICATIC`N H,aRT <br /> I'g PANGF. OF Gr SIZE, <br /> t CL4afFif;.Zi,C�y U.g. Standard + Grain Size t <br /> Sieve SiZ's I In �Millim '!ers ! <br /> 2QUi.DERS Above " j <br /> I <br /> ff 12 'Above --05S <br /> COBBLES i2�So3+ 3CSto-,6?. <br /> GRAVE' C to No.4r a.2 to ..,S <br /> CLICRSE <br /> a i4' <br /> € { FINE -=/4"_fo Na4 f�Z to 13.1 <br /> - <br /> 4! <br /> SAND <br /> rJo.4 to rNa.20O 4.75 to n.O7,; <br /> I CC ARSE !ta.4 to No.l0 a.,6 ra' <br /> r MEDIUM { , 200 <br /> ia,i0 to Na.40 2_1'1O to 0.420 <br /> FINE hL40 to No.2000,42fl to 0.G774 <br /> SfLT&CLAY � Below No. <br /> 0 <br /> 2C <br /> 1 Belaw No.O.Q74 <br /> F ! nAlll:GIZF CH�J4T <br /> GrZOUtYDWATE-� <br /> TECHNOLDGY <br /> n . <br /> xr > <br /> � � 7 <br />