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GENERAL TERMINOLOGY NOTES FOR <br />SOIL IDENTIFICATION AND DESCRIPTION <br /> <br />GRAIN SIZE <br /> <br />Term ASTM <br /> <br />Boulders Over 12" <br />Cobbles 3" to 12" <br />Gravel #4 sieve to 3" <br />Sand #200 to #4 sieve <br />Fines (silt & clay) Pass #200 sieve <br /> <br />CONSISTENCY OF PLASTIC sOILs <br /> <br />Term N-Value, BPF <br /> <br />Very Soft less than 2 <br />Soft 2-4 <br />Medium 5-8 <br />Stiff 9-15 <br />Very Stiff 16-30 <br />Hard Greater than 30 <br /> <br />MOISTURE#FROST CONDITION <br /> <br />(MC Column) <br /> <br />D (Dry): <br /> <br />M (Moist): <br /> <br />W (Wet/ <br />Waterbearing): <br /> <br />F (Frozen): <br /> <br />Absence of moismre, dusty, dry to <br />touch. <br />Damp, although free water not visible. <br />Soft may still have a high water content <br />(over "optimum"). <br /> <br />Free water visible. Intended to describe <br />non-plastic soils. <br />Soil frozen. <br /> <br />FIBER CONTENT OF PEAT <br /> <br />Terln <br /> <br />Fibric: <br />Heroic: <br />Sapric: <br /> <br />Fiber Content (Visual Estimate) <br /> <br />Greater than 67 % <br />33-67% <br />Less than 33 % <br /> <br />GRAVEL PERCENTAGES <br /> <br />.T.e. rm Percent <br /> <br />A Little Gravel 3 %- 15 % <br />With Gravel 15 %-30 % <br />Gravelly 30 %-50 % <br /> <br />RELATIVE DENSITY OF NON-PLASTIC SOILS <br /> <br />Term N-value, BpF <br /> <br />Very Loose 0-4 <br />Loose . 5-10 <br />Medium Dense 11-30 <br />Dense 31-50 <br />Very Dense Greater than 50 <br /> <br />Laminations.: <br /> <br />Lenses: <br /> <br /> LAYERING NOTES <br /> <br />Layers less than 1/2" thick of differing <br />material or color. <br /> <br />Pockets or layers greater than ½" thick of <br />differing material or color. <br /> <br />ORGANIC DESCRIPTION <br /> <br />Non-peat soils are described as organic, if soil is judged <br />to have sufficient organic content to influence the soil <br />properties. <br /> <br />blCLS011(4/96) <br /> <br />AMERICAN ENGINEERING TESTING, INC. <br /> <br /> <br />