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M02106GE <br />• APPENDIX B <br />The laboratory study consisted of performing: <br />Moisture content and dry density tests, <br />Swell-consolidation tests, <br />Direct Shear Strength tests, and <br />Triaxial compression strength tests, <br />It should be noted that samples obtained using a drive type <br />sleeve sampler may experience some disturbance during the <br />sampling operations. The test results obtained using these <br />samples are used only as indicators of the in situ soil <br />characteristics. <br />TESTING <br />Moisture Content and Dry Density <br />Moisture content and dry density were determined for each <br />sample tested of the samples obtained. The moisture content was <br />determined according to ASTM Test Method D2216 by obtaining the <br />moisture sample from the drive sleeve. The dry density of the <br />sample was determined by using the wet weight of the entire <br />• sample tested. The results of the moisture and dry density <br />determinations are presented on the logs of test borings, Figures <br />A2 through A24. <br />Swell Tests <br />Loaded swell tests were performed on drive samples obtained <br />during the field study. These tests are performed in general <br />accordance with ASTM Test Method D2435 to the extent that the <br />same equipment and sample dimensions used for consolidation <br />testing are used for the determination of expansion. A sample is <br />subjected to static surcharge, water is introduced to produce <br />saturation, and volume change is measured as in ASTM Test Method <br />D2435. Results are reported as percent change in sample height. <br />Consolidation Tests <br />One dimensional consolidation properties of drive samples were <br />evaluated according to the provisions of ASTM Test Method D2435. <br />Water was added in all cases during the test. Exclusive of <br />special readings during consolidation rate tests, readings during <br />an increment of load were taken regularly until the change in <br />sample height was less than 0.001 inch over a two hour period. <br />The results of the swell-consolidation load test are summarized <br />on Figures B1 through B8, swell-consolidation tests. <br />B1 <br />~Cam6ert ana ~,o~ociateo <br />CONSULTING OEOTEGNNICAL ENGIN EENS ANO <br />MATERIAL TESTING <br />