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04 ATTACHMENT 6
City of Pleasanton
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2021
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081721
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04 ATTACHMENT 6
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8/12/2021 4:19:24 PM
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CITY CLERK
CITY CLERK - TYPE
AGENDA REPORT
DOCUMENT DATE
8/17/2021
DESTRUCT DATE
15Y
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04
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\CITY CLERK\AGENDA PACKETS\2021\081721
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<br /> <br />APPENDIX B <br />LABORATORY TESTING <br />Laboratory tests were performed in accordance with generally accepted test methods of the American Society for <br />Testing and Materials (ASTM) or other suggested procedures. Selected samples were tested for grain size <br />distribution, Atterberg Limits, expansion potential, unconfined compressive strength, and in-situ dry density <br />and/or moisture content. The results of our testing are summarized in tabular format below and the following <br />figures. In-situ dry density and moisture content test results are included on the boring logs in Appendix A. <br />TABLE B-I <br />SUMMARY OF LABORATORY ATTERBERG LIMITS TEST RESULTS <br />ASTM D 4318 <br />Sample No. Liquid Limit Plastic Limit Plasticity Index <br />B1-3 30 17 13 <br /> <br />TABLE B-II <br />SUMMARY OF LABORATORY GRAIN SIZE ANALYSIS – NO. 200 WASH <br />ASTM D1140 <br />Boring No. Sample Depth (feet) Fraction Passing No. 200 Sieve <br />(%) <br />B1 15.5 – 16.5 19 <br />B1 19 – 20 21 <br />B2 9 63 <br />B4 12.75-13.5 47 <br />B4 17.5-18 18 <br />B7 10.5-11.5 92 <br /> <br />TABLE B-III <br />SUMMARY OF LABORATORY EXPANSION INDEX TEST RESULTS <br />ASTM D 4829 <br />Sample No. <br />Moisture Content <br />Dry Density* (pcf) Expansion Index <br />Before Test (%) After Test (%) <br />B2-1-5 13.0 24.7 99.0 13 <br />*Note: Dry density prior to saturation. <br /> <br /> <br /> <br /> <br /> <br /> <br />
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