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M98168GE • <br />APPENDIX B <br />r~ <br />L <br />The laboratory study consisted of performing: <br />Moisture content and dry density tests, <br />Swell-consolidation teats, <br />Direct Shear Strength tests, <br />Unconfined Compressive Strength tests, <br />Sieve analysis teats, <br />Atterberg limits teats, <br />California bearing ratio tests, <br />Moisture Content-dry density relationship tests, and <br />Chemical tests. <br />It should be noted that samples obtained using a drive type <br />sleeve sampler may experience some disturbance during the sampling <br />operations. The test results obtained using these samples are used <br />only as indicators of the in situ soil characteristics. <br />TESTING <br />Moisture Content and Dry Density <br />Moisture content and dry density were determined for each sample <br />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 e~et weight of the entire sample <br />tested. The results of the moisture and dry density determinations <br />are presented on the logs of test borings, Figures A2 through A7. <br />Swell Teats <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 Teet Method D2435 to the extent that the same <br />equipment and sample dimensions used for consolidation testing are <br />used for the determination of expansion. A sample is subjected to <br />static surcharge, water is introduced to produce saturation, and <br />volume change is measured as in ASTM Test Method D2435. Results <br />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 teat. Exclusive of special <br />B1 <br />Lambert ana ~~,ooeiates~ <br />CONIUIiiNp pE01lCNN,UL lNOMllq lM0 <br />Y~iIIN~I illtlNO <br />