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J <br />TABLE 16-1-A—SOIL CLASSIFICATION CHART—(Conilnued) <br />CLASSIFICATION CRITERIA <br />Ca = D601DIO Greater than 4 <br />For classification of fln"ralned awls and fine traction of oo&m"ralned <br />CZ = DIO X D6o Between 1 and 3 <br />solls <br />Not meeting both criteria for GW <br />Atterberg limits plot below <br />Atterberg fimlts pbMing In hatched area are borderilne classMcatlons <br />requiring use of dual symbols. <br />"A" line or plasticity index <br />Atterberg limits plotting <br />less than 4 <br />in hatched area are bor- <br />Atterberg limits plot below <br />"A" <br />derline classifications <br />requiring use of dual <br />CLASSIFICATION ON BASIS OF PERCENTAGE OF FINES <br />line and plasticity index <br />symbols <br />Less than 5%, Pass No. 200 (75 µm) sieve GW, GP, SW, SP <br />� cater than 7 <br />More than 12% Pass N. 200 (75 Iun) sieve GM, GC, SM, SC <br />5% to 12% Pass No. 200 (/5 pm) sieve Borderilne Ciasstfication <br />C. = D60ID10 Greater than 6 <br />j requiring use of dual symbols <br />3 <br />(3( )D <br />_D <br />C D Between 1 and 3 <br />10 60 <br />Not meeting both criteria for SW <br />Atterberg limits plot below <br />ML&OL <br />"A" line or plasticity index <br />Atterberg limits plotting <br />less than 4 <br />in hatched area are bor- <br />Atterberg limits plot above <br />derline classifications <br />requiring use of dual <br />"A" line and plasticity index <br />symbols <br />greater than 7 <br />PLASTICITY CHART <br />For classification of fln"ralned awls and fine traction of oo&m"ralned <br />solls <br />Atterberg fimlts pbMing In hatched area are borderilne classMcatlons <br />requiring use of dual symbols. <br />CH <br />A-Une <br />Equation of Aalne: <br />PI = 0.73 (ILL -20) <br />CL <br />MH & OH <br />-- - -- -��--GSL <br />ML&OL <br />10 20 <br />Vlsuat-Manual Identification <br />30 40 so 5o <br />Liquid Limit <br />70 so 90 100 <br />3-329 <br />