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St. Barbara Catholic School <br />Project No.: D-6289-01 <br />C. Direct Shear <br />Direct shear tests were performed on selected samples and are <br />pertinent for foundation bearing, earth pressure, and slope stability <br />results are provided on Plates J-1 and J-2 in Appendix A. <br />D. Consolidation <br />CITY OF SANTA ANA <br />Planning and Building Agency <br />may, lS. <br />Approved <br />FOR PERMIT ISSUANCE <br />Master ID: <br />d the most <br />. Test <br />Consolidation (load deformation) tests were performed on selected relatively undisturbed <br />samples. Plotted test results are presented on Plates K and L. <br />E. Chemical Analysis <br />Chemical sulfate analysis was performed on selected samples generally representative of <br />the upper soils. A soluble sulfate content of 320 ppm was measured, indicating a low <br />potential for sulfate attack. <br />F. Expansion <br />Expansion characteristics were determined by the Expansion Index test on a typical bulk <br />sample, considered being generally representative of the near subgrade soils. Test results <br />were as follows: <br />Moisture Content (%) <br />Dry Density (pcf) <br />Expansion Index <br />8.5 <br />115.8 <br />0 <br />G. R-Value Test (ASTM D-2844) <br />Representative samples of the subgrade soils were obtained and tested to determine the <br />R-value. The material is thought to be typical and presumed to be representative of the <br />subgrade soils. Testing was perfonned in general accordance with the latest revisions to <br />the Department of Transportation, State of California, Material & Research Test Method <br />rJ <br />