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r^i 4230 Kiernan Avenue,Ste 150 1 Modesto,CA 95356 209.543.1799 1 Fax 209.543.1775 <br /> DEFINITION OF TERMS <br /> PRIMARY DIVISIONS SYMBOLS SECONDARY DIVISIONS <br /> --- WELL GRADED GRAVELS,GRAVEL-SAND MIXTURES <br /> GRAVELS CLEAN AQ <br /> MORE THAN GRAVELS _ LITTLE OR NO FINES <br /> Z HALF OF <5%FINES �GP POORLY GRADED GRAVELS OR GRAVEL SAND MIXTURES, <br /> COARSE LITTLE OF NO FINES <br /> O O F"W FRACTION ISSILTY GRAVELS,GRAVEL-SAND-SILT MIXTURES, <br /> LARGER THAN GRAVELS CTM NON-PLASTIC FINES <br /> G O NO.4 SIEVE WITH FINES / - • CLAYEY GRAVELS,GRAVEL-SAND-CLAY MIXTURES, <br /> CT <br /> z C PLASTIC FINES <br /> GRADED SANDS,GRAVELLY SANDS,LITTLE OR NO <br /> SANDS CLEAN -!•' SW •_!•- FINES <br /> MORE THAN SANDS <br /> P,O O HALF OF - <br /> <5%FINES S,P POORLY GRADED SANDS,GRAVELLY SANDS,LITTLE OR <br /> Z NO FINES <br /> O'�',¢ COARSE SILTY SANDS,SAND-SILT MIXTURES,NON-PLASTIC FINES <br /> U FRACTION IS SANDS SM <br /> SMALLER THAN WITH FINES <br /> NO.4 SIEVE SC CLAYEY SANDS,SAND-CLAY MIXTURES,PLASTIC FINES <br /> INORGANIC SILTS,VERY FINE SANDS,ROCK FLOUR,SILTY <br /> ML OR CLAYEY FINE SANDS,SLIGHTLY PLASTIC CLAYEY SILTS <br /> SILTS AND CLAYS <br /> Oa m INORGANIC CLAYS OF LOW TO MEDIUM PLASTICITY, <br /> LIQUID LIMIT IS CL <br /> LESS THAN 50 <br /> GRAVELLY,SANDY,SILTS OR LEAN CLAYS <br /> ORGANIC SILTS AND ORGANIC CLAYS OF LOW PLASTICITY <br /> ZZ4. <br /> .a' INORGANIC SILTS,MICACEOUS OR DIATOMACEOUS FINE <br /> z SILTS AND CLAYS MII SANDY OR SILTY SOILS,ELASTIC SILTS <br /> LIQUID LIMIT IS CII INORGANIC CLAYS OF HIGH PLASTICITY,FAT CLAYS <br /> GREATER THAN 50 <br /> CH ORGANIC CLAYS OF MEDIUM TO HIGH PLASTICITY, <br /> ORGANIC SILTY CLAYS <br /> HIGHLY ORGANIC SOILS PT PEAT AND OTHER HIGHLY ORGANIC SOILS <br /> GRAIN SIZES <br /> BOULDERS COBBLES GRAVEL I SAND SILTS AND CLAYS <br /> COARSE I FINE COARSE I MEDIUM I FINE <br /> 12" 3" 3/4" 4 10 40 200 <br /> CLEAR SQUARE SIEVE OPENING U.S. STANDARD SIEVE SIZE <br /> ADDITIONAL TESTS <br /> (OTHER THAN TEST PIT AND BORING LOG COLUMN HEADINGS) <br /> MAX-Maximum Dry Density PM-Permeability PP-Pocket Penetrometer <br /> GS-Grain Size Distribution SG- Specific Gravity WA-Wash Analysis <br /> SE- Sand Equivalent HA-Hydrometer Analysis DS-Direct Shear <br /> EI-Expansion Index AL-Atterberg Limits UC-Unconfined Compression <br /> CHM- Sulfate and Chloride RV-R-Value MD-Moisture/Density <br /> Content,pH,Resistivity CN-Consolidation M-Moisture <br /> COR-Corrosivity SC- Swell Compression <br /> OI-Organic Impurities <br /> FIGURE: BLl <br />