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Penetration Resistance and Soil Properties (Peck, et all <br />Sands <br />Clays <br />Blows per foot (N) <br />Relative Density <br />Blows per foot (N) <br />Consistency <br />oe <br />Less than 2 <br />Very Soft <br />0-4 <br />Very Loose <br />2-4 <br />Soft <br />4-10 <br />Loose <br />4-8 <br />Medium <br />10-30 <br />Medium <br />8-15 <br />Stiff <br />30-50 <br />Dense <br />15-30 <br />Very Stiff <br />Over 50 <br />Very Dense <br />Over 30 <br />Hard <br />PI=0.7) <br />`, <br />H <br />o_ <br />X <br />W <br />0 <br />Z <br />r <br />H <br />V_ <br />1— <br />N <br />Q <br />J <br />a <br />60 <br />lk <br />3C <br />2C <br />10 <br />7 <br />4 <br />00 10 16 20 30 40 50 60 70 <br />LIQUID LIMIT (LL) <br />Plasticity Chart <br />References <br />American Society for Testing and Materials, 2011. Standard Practice for Classification of Soils for <br />Engineering Purposes (Unified Soil Classification System). May 1. <br />Peck, Ralph B., Foundation Engineering, Second Edition, John Wiley & Sons, 1973. <br />Page 2 of 3 <br />we <br />ine-grained soils <br />For classificaXione-osorainel <br />oe <br />and fine-grainon of coarse-grained <br />/ <br />-40 <br />1/0000 <br />soils./ <br />Equation of A7-lineraj <br />Horizontal at PI-4LL=25.5, <br />J��jthen <br />PI=0.7) <br />`, <br />Equation of°UVertical at LLI=7 <br />PI=0.9// <br />Gthen <br />// O1\/ <br />/ <br />MH OR <br />OH <br />i <br />--- <br />MLOR <br />OL <br />M <br />References <br />American Society for Testing and Materials, 2011. Standard Practice for Classification of Soils for <br />Engineering Purposes (Unified Soil Classification System). May 1. <br />Peck, Ralph B., Foundation Engineering, Second Edition, John Wiley & Sons, 1973. <br />Page 2 of 3 <br />we <br />