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5 <br />UNIPIED <br />CLASSIFICATION <br />**sows k all: er dela. > is steak Mora, < is kss hen <br />(Ales Bissau of Reclamation, 1973; I pd=157.1 Ned. 1 mf-95.8 kPa) <br />Table 3.1 Average Effective Shear Strength of Compacted Soils. <br />SOIL TYPE <br />PROCTOR COMPACTION <br />MAXIMUM OP11MUM AS COMPACTED SATURATED FRICTION <br />DRY MOISTURE CONISION COURSON ANGLE <br />DENSITY CONTENT C. Or 3 <br />✓ d s td tsf dell <br />OW well Snded clean gravels, STavel -sand mixture >119 <l3.3 • • >38 <br />OP poorly graded clean gravels. gravel sand mixture >110 <l2.4 • • >37 <br />OM silty gravels. poorly graded gravel -sand -silt >114 <14.3 • • >34 <br />clayey 8n�. ply graded gravel-sand-clay OC ela >115 <14.7 • • >31 <br />SW well graded dean sands, gravelly sands 119±5 13.3±2.5 0.41±0.04 • 31 ±1 <br />SP poorly graded dean sands. sand -gravel mixture 110 ±2 12.4 ±1.0 0.24 ±0.06 • 37 ±1 <br />SM silty sands, poorly graded sand -silt mixture 114 ±1 14.5 ±0.4 0.53 ±0.06 0.2110.07 34±1 <br />SM-SC sand- sit -clay whh slightly plastic lines 119 ±1 12.8±0.5 0.21±0.07 0.1510.06 33 ±3 <br />SC clayey sands. poorly graded sand -clay mixture 115 ±1 14.7±0.4 0.78±0.16 0.12±0.06 31 ±3 <br />ML inorganic fib and Bayed silts 103 ±1 19.2±0.7 0.7020.10 0.09±• 32 ±2 <br />ML-CL mixtures of Moronic sib and clays 109 ±2 16.8±0.7 0.66 ±0.18 0.23 ±• 32 ±2 <br />CL inorganic clays of low to medium plasticity 108 ±1 17.3 ±3 0.91 ±0.11 0.141-0.02 28 ±2 <br />OL organic fib and silty days of low plasticity • • • • • <br />MH inorganic clayey silts, elastic silts 82 ±4 36.3 ±3.2 0.7630.31 0.21 t0.09 25 ±3 <br />CH inorpoic clays of high plasticity 9412 25.5±1.2 1.07 ±0.35 0.1230.06 19±5 <br />OH organic clays and silty clays • • • • • <br />