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Figure 4 <br /> SOIL CLASSIFICATION CHART <br /> %CLAY = % finer than 5 microns <br /> "fr SILT = % passing•#'200 -% clay <br /> 'f SAND = % passing* 8 --%passing* 200 <br /> If ow 50% is retained on *8. <br /> sample is gravel-modified by amounts <br /> of other constituents contained. (sand, si It,clay) <br /> EXAMPLE CLASSIFICATION <br /> Given: %passing-#8 = 100 <br /> %passing*200=32 � 100 <br /> passing 5 microns =16 <br /> �O <br /> For solution see dashed Eines on chart. 90 <br /> EMafttial is silty sand. <br /> 10O - <br /> so <br /> `a <br /> 70 <br /> CLAY <br /> V V 0 60 4L <br /> CNO \A/ /Vvv 50VVVV\ <br /> f� <br /> 00 ANDY SANDY SILTY SILTY 40 <br /> C LAY C LAY LAY <br /> a <br /> 0 30 <br /> CLAYEY CLAYEY SILL LAYEY <br /> o1SSA NV.D & SAN D S 1 LT <br /> 20 <br /> Sl*lly — 1LTY SILT � ^'SANDY <br /> clay" _ �o A N D \SILT <br /> to <br /> VVV'\V \/VV\/V\/V <br /> *V_ V V <br /> -A/V�x�z <br /> o `a 4R & Sa o Co n <br /> % SILT <br /> 16 <br />