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PERMFILE66808
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PERMFILE66808
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Last modified
8/24/2016 11:12:33 PM
Creation date
11/20/2007 9:33:13 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1999002
IBM Index Class Name
Permit File
Doc Date
4/20/1999
Doc Name
TR 1 TO APPLICATION GEOTECHNICAL ENGINEERING STUDY UPPER PLANT SITE
From
AMERICAN SODA
To
DMG
Media Type
D
Archive
No
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M98168GE • • <br />slab to help discourage capillary and vapor moisture rise through <br />the floor slab. The moisture barrier may consist of a heavy <br />plastic membrane, six (6) mil or greater, protected on the top and <br />bottom by at least two (2) inches of clean sand. The plastic <br />membrane should be lapped and taped or glued and protected from <br />punctures during construction. <br />The Portland Cement Association suggests that welded wire rein- <br />forcing mesh is not necessary in concrete slab-on-grade floors when <br />properly jointed. It is our opinion that welded wire mesh may help <br />improve the integrity of the slab-on-grade floors. We suggest that <br />concrete slab-on-grade floors should be reinforced, for geotechni- <br />cal purposes, with at least 6 x 6 - W2.9 x W2.9 (6 x 6 - 6 x 6) <br />welded wire mesh positioned midway in the slab. The structural <br />engineer should be contacted for structural design of floor slabs. <br />7.0 COMPACTED STRUCTURAL FILL <br />Material characteristics desirable for compacted structural fill <br />are discussed in Appendix C. <br />Because of the anticipated swell potential of the on site soils, <br />it is our opinion that the on site soils are lees desirable for use <br />as compacted structural fill than an imported non-expansive <br />granular material as discussed in Appendix C. We anticipate that <br />it may not be cost effective to import non-expansive granular <br />structural fill material and that the owner may prefer to use on <br />site material for compacted structural fill. <br />If the on site soil materials are used as compacted structural <br />fill the soils should be moisture conditioned to about two (2) to <br />four (4) percent wet of optimum moisture content and compacted to <br />at least ninety (90) percent but not more than ninety-Five (95) <br />percent of the maximum dry density as defined by ASTM D1557, <br />modified moisture-density relationship (Proctor) teat. The soil <br />materials should be placed in thin lifts about six (6) inches in <br />compacted thickness and compacted with a kneading type compactor <br />such as a sheepsfoot type roller. <br />After placement of the structural fill the surface should not be <br />allowed to dry prior to placing concrete or additional fill materi- <br />al. This may be achieved by periodically moistening the surface of <br />the compacted structural fill as needed to prevent drying of the <br />structural fill. We are available to discuss this with you. <br />15 <br />Lambert ana ~,aaociatea <br />COYIOLTIMO OlOTlCMMIGI IMOIM!!p lM0 <br />Y~il M11l TElTIMO <br />
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