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r <br /> nig <br /> r^i 4230 Kiernan Avenue,Ste 150 1 Modesto,CA 95356 1209.543.1799 1 Fax 209.543.1775 <br /> DEFINITION OF TERMS <br /> PRIMARY DIVISIONS SYMBOLS SECONDARY DIVISIONS <br /> _o WELL GRADED GRAVELS,GRAVEL-SAND MIXTURES <br /> GRAVELS CLEAN as GW Aa o LITTLE OR NO FINES <br /> Z MORE THAN GRAVELS POORLY GRADED GRAVELS OR GRAVEL SAND MIXTURES, <br /> = /o FINES <br /> HALF OF N GP ='! LITTLE OF NO FINES <br /> cb--w COARSE SILTY GRAVELS,GRAVEL-SAND-SILT MIXTURES, <br /> u FRACTION IS GRAVELS GM •i NON-PLASTIC FINES <br /> =(w LARGER THAN WITH FINES 4 CLAYEY GRAVELS,GRAVEL-SAND-CLAY MIXTURES, <br /> Z <> GC PLASTIC FINES <br /> v` - WELL GRADED SANDS,GRAVELLY SANDS,LITTLE OR NO <br /> C72 o SANDS CLEAN FINES <br /> MORE THAN SANDS POORLY GRADED SANDS,GRAVELLY SANDS,LITTLE OR <br /> ✓� <5%FINES <br /> HALF OF SP NO FINES <br /> Z <br /> � <br /> O ¢ COARSE SILTY SANDS,SAND-SILT MIXTURES,NON-PLASTIC FINES <br /> FRACTION IS SANDS SM <br /> SMALLER THAN WITH FINES <br /> NO.4 SIEVE SC NO. SANDS,SAND-CLAY MIXTURES,PLASTIC FINES <br /> INORGANIC SILTS,VERY FINE SANDS,ROCK FLOUR,SILTY <br /> w. w OR CLAYEY FINE SANDS,SLIGHTLY PLASTIC CLAYEY SILTS <br /> n C)w SILTS AND CLAYS <br /> p -1 w LIQUID LIMIT IS CL INORGANIC CLAYS OF LOW TO MEDIUM PLASTICITY, <br /> <> GRAVELLY,SANDY,SILTSOR LEAN CLAYS <br /> LESS THAN 50 <br /> wx ORGANIC SILTSAND ORGANIC CLAYSOF LOW PLASTICITY <br /> Z KK= <br /> Q oN INORGANIC SILTS,M ICACEOUSOR DIATOMACEOUS FINE <br /> ¢O MH SANDY OR SILTY SOILS,ELASTIC SILTS <br /> v w Z SILTS AND CLAYS <br /> ZLL] LIQUID LIMIT IS CH INORGANIC CLAYS OF HIGH PLASTICITY,FAT CLAYS <br /> Z <br /> << <br /> GREATER THAN 50 <br /> OH ORGANIC CLAYSOF MEDIUM TO HIGH PLASTICITY, <br /> ORGANIC SILTY CLAYS <br /> HIGIILY ORGANIC SOILS P r PEAT AND OTHER HIGHLY ORGANIC SOILS <br /> GRAIN SIZES <br /> BOULDERS COBBLES RAVEL I COARSEFINE COARSE MEDIUM FINE SILTS AND CLAYS <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 A nal ysi s DS-Direct Shear <br /> EI-Expansion Index AL-Atterberg Limits UC-Unconfined Compression <br /> CHM-Sulfate and Chloride RV-R-Value MD-Moisture0ensity <br /> Content , pH, Resistivity CN-Consolidaltion M-Moisture <br /> COR-Corrosivity SC-Swel I Compres§on <br /> OI-Organic Impurities <br /> FIGURE: BL1 <br />