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1 <br /> SC3SI FICATI®N CHART <br /> iL CLAS <br />' 1000 <br /> 4 t 1 .cam. <br /> 171 <br /> CY <br />' A 100 v <br /> CO 7 <br /> U 10 : . <br />' 1 <br /> 0 1 2 3 4 5 6 7 8 <br />' I Friction Ratio (%), Rf <br /> Zone Qt / N Soil Behaviour Type ; <br />' 1 ■ 2 sensitive fine grained <br /> 2 ® 1 organic material <br /> 3 9 1 clay <br /> 4 ■ 1.5 silty clay to clay <br /> 5 0 2 clayey silt to silty clay <br />' 6 2.5 sandy silt to clayey silt <br /> 7 3 silty sand to sandy silt <br /> 8 4 sand to silty sand <br />' 9 5 sand <br /> 10 6 gravelly sand to sand <br /> 11 1 very stiff fine grained <br />' 12 .,_ 2 sand to clayey sand <br /> * overconsolidated or cemented <br /> After Robertson and Campenella <br /> • Figure 5 <br />