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<br />3-27 <br /> <br />e <br /> <br />Table 3-1 <br /> <br />Erosional Analyses <br /> <br />A. Index Tests <br /> <br />I. Classification !/ <br /> <br />a. Mechanical analysis <br /> <br />b. Liquid limit <br /> <br />Plasticity index <br /> <br />c. Plastic limit <br /> <br />2. Dispersion <br /> <br />a. Field tests to identify possible problem areas <br /> <br />b. Lab tests for soils with more than 15% >.005 rom and <br />for a P.I. >8 <br /> <br />3. Soluble salts <br /> <br />e <br /> <br />4. Natural dry unit weight <br /> <br />B. Engineering Properties Tests ~/ <br /> <br />I. Permeability <br /> <br />2. Shear strength <br /> <br />a. Unconfined compression 1/ <br /> <br />b. Vane shear <br /> <br />!/ For tractive force, limiting velocity or tractive power <br />procedures. <br /> <br />~/ These tests may be made at local option. Results will provide <br />supporting information which may assist in evaluating erosional <br />s tab ili ty. <br /> <br />e 1/ For tractive power procedure only. <br />