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1 <br /> I <br /> ' UNIFIED SOIL CLASSIFICATION SYSTEM <br /> ' MAJOR DIVISIONS SYMBOL CODE TYPICAL NAMES <br /> GW o �Cf <br /> �o�° Well graded gravels or grave!-sand mixtures,little or no fines <br /> GRAVELS <br /> ' GP Poorly graded gravels or gravel-sand mixtures,little or no fines <br /> N (More than 112 of <br /> coarse fraction > o <br /> p S GM p 0 Silty gravels,grave!-sand-silt mixtures <br /> (n-0 m no 4 sieve Size) <br /> W <br /> N ; <br />