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Page 19 <br /> <br /> <br />APPENDIX B LABORATORY TESTING <br /> <br /> <br />Expansion Index <br />Expansion Index test was conducted on the existing onsite near surface materials sampled during field <br />investigation. The test is performed in accordance with ASTM D-4829. The testing results are presented <br />below: <br />Sample Location Dry Density <br />pcf <br />Moisture <br />content % <br />Expansion <br />Index <br />Classification <br />BH-1 2.0’ 122 11.3 Zero Ver Low <br /> <br /> <br />Corrosion Potential <br />Chemical laboratory test were conducted on the existing onsite near surface materials. The rests are <br />performed in accordance with California Test Method 417, 422, 532 and 643. The resting results are <br />shown in table below: <br />Sample Location PH Sulfate Content <br />% b Wei ht <br />Min. Resistivity <br />ohm-cm <br />Chloride <br />Content ppm <br />BH-1 0’ to 5’ 8 0.0676 1,987 123 <br /> <br />Note: N/R= Not Requested <br /> <br />522 S Raitt St & #2 - <br />101118250-518/19/2024