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Simplified Soil Behavior Type Classification <br /> for Standard Electronic Cone Penetrometer(Robertson 1986) <br /> iC00 <br /> h <br />! 9 <br /> �-, <br /> +`o <br /> ICO <br /> U <br /> O' <br /> COc <br /> +o <br /> a� <br /> m <br /> m <br /> p 10 <br /> U <br /> 1 <br /> 0 1 2 3 4 5 6 7 8 <br /> Friction Ratio, Rf(4b) <br /> Zone Soil Behavior Type <br /> 1 Sensitive Fine Gained <br /> organic Material <br /> CLAY <br /> Silty CLAY to CLAY <br /> Clayey SILT to Silty CLAY <br /> Sandy SILT to Clayey SILT <br /> Silty SAND to Sandy SILT <br /> SAND to Silty SAND <br /> 9 SAND <br /> Gravelly SAND to SAND <br /> Very Stiff Fine Grained (*) <br /> SAND to Clayey SAND (*) <br /> (*} Overconsolidated or Cemented <br /> 1400 South 50th Street o Richmond, CA 94804 0 (510) 237-4575 o FAX (510) 237-4574 <br /> httn I/www nrecisionsamphn;g com <br /> Nationunde Direct-Push Services <br /> 1-800-671-4744 <br />