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TABLE 18-1-A~OIL CLASSIflCAT10N CHART-(Cotttinued) <br />CLASSIFICATION CRITERIA <br /> Ca = D6p/DIa Greater than 4 <br /> D <br />~' ~~6o Between 1 and 3 <br />CZ Dto <br /> Not meeting both aiteria for GW <br /> Atterlierg limits plot below <br /> "A° line or plasticity index Atterberg limits plotting <br /> less than 4 in hatched azea aze bor- <br /> <br />CLASSIFICATION Atterbcrg limits plot below <br />" <br />° decline classifications <br />requiring use of dual <br />ON BASIS OF PERCENTAGE OF FINES A <br />line and plasticity index symbols <br />Lass than 5%, Pau No. 200 (75 µm) sieve GW, GP, SW, SP eater than 7 _ <br />~ <br />More than 12% Pass N. 200 {IS µm) sieve GM, GC, SM, SC <br />596 to 12% Pass No. 200 fT5 µm) sieve Borderline Classification <br />Cu = D6p/Dlo Greater than 6 <br />requiting use of dual symbols <br /> p 3 <br />) <br /> D~ Between 1 and 3 <br />Cz = Dtp X <br /> Not meeting both criteria for SW <br /> Atterberg limits plot below <br /> "A" line or plasticity index Atterberg limits plotting <br /> less than 4 in batched azea are bor- <br /> <br />Atterberg limits plot above <br />" <br />" dedine classifications <br />requiring use of dual <br /> A <br />line and plasticity index symbols <br /> greater than 7 <br />x <br />v° <br />t <br />a <br />4 <br />a <br />1 <br />7 <br />4 <br />0 <br />0 <br />PLASTICITY CHART <br />For classification otflne-grained sobs and fine haction of coarse-grained <br />soils <br /> <br />Attecbetg gmits plotting In hatched area are bordeAine classHicafions <br />regWting use of dual symbols. CH A-l~ne <br />Equation of Aaine: ~-~ <br />PI = 0.73 (LL -20) <br /> CL <br /> MH & OH <br />----- -/_~__G~L-~itl~~s <br />i ML&OL <br />7a 20 30 40 50 fi0 70 80 90 - 100 <br />Uquid Limft <br />I Y~suai-Manual tdennttcation <br />