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Average Effective Shear Strength of Compacted Soils. <br /> PROCTOR COMPACTION <br /> MA%IMUM OPTIMUM AS COMPACTED SATURATED FRICTION <br /> DRY MOISTURE COHESION COHESION AN <br />GLE <br />UNIFlED DENSITY CONTENT Co Cup Gj <br />W <br />MSSIflCAT10N SOIL TYPE pcf ~ Lsf tsf deg <br />GW well graded clean gravels, gravel-sand mixture >119 <13.3 • >38 <br />GP poorly graded clean gravels, gravel sand mixture >I10 <12.4 • >37 <br />GM silty gravels, poorly graded gravel-sand-silt >114 <14.5 • • >34 <br />GC clayey gravels, poorly graded gravel-sand-clay > ITS <14.7 >31 <br />SW well graded clean sands, gravelly cards 11915 13.312.5 0.4110.04 • 3811 <br />SP poorly graded clean sands, sand-gravel mixture 110`_2 12.411.0 0.2410.06 • 3711 <br />SM silty sands, poorly graded sand-silt mixture 11411 14.510.4 0.5310.06 0.2110.07 34x1 <br />SM•SC sand-silt-clay with slightly plastic fines 1191-1 12.810.5 0.2110.07 0.1510.06 33x3 <br />SC clayey sands, poorly graded sand-clay mixture 11511 14.710.4 0.7810.16 0.1210.06 3113 <br />ML inorganic silts and clayed silts 10311 19.210.7 0.7010.10 0.091• 3212 <br />ML-CL mixtures of inorganic silts and clays 10912 16.810.7 0.6610.16 0.231• 3212 <br />CL inorganic clays of low to medium plasticity 10811 17.313 0.9110.11 0.1410.02 2812 <br />OL organic silts and silty clays of low plasticity • • • <br />MH inorganic clayey silts, elastic silts 6214 36.313.2 0.7610.31 0.2110.09 2513 <br />CH inorganic clays of high plasticity 9412 25.511.2 1.0710.35 0.1210.06 1915 <br />OH organic clays and silty clays <br />•denrxes insufficient dau, > is grcattt than, < is less than <br />(Aber Bureau of Ralamation, 1973; I pcf=157 I N/m', 1 tsf=95.8 kPa) <br /> (FROM NuauG) <br />