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Repoa of Soils Investigation <br />22i5 South Standard Ave., Proposed Addition <br />San <br />Page 20 of27 <br />Job No. 40-0613 <br />I <br />I <br />l <br />'t999 <br />Total Lons Term <br />Settlement inches <br />10.3.3 Floor Slabs <br />Building slab minimum design recommendations presented herein are based on <br />anticipated loading conditions. lnterior floor slabs subjected to loading should <br />have a minimum thickness of 5 inches and be reinforced with a minimum of No. 3 <br />reinforcing bars at 24 inches on center (each way) placed in the middle one-third <br />of slab height. The correct placement ofthe reinforcement in the slab is vital for <br />satisfactory performance under normal conditions. The floor slab on foundations <br />should be tied together by extending the slab reinforcement into the footings. In <br />the areas to receive moisture sensitive floor covering a polyethylene moisture <br />barrier (6 mil or greater) should be placed beneath the slab. <br />A four inch layer of coarse clean sand should underlie the polyethylene moisture <br />barrier. Approximately 1" of clean fine sand should be placed over the <br />polyethylene vapor barrier. <br />I <br />l <br />ATED SET-TLEMENTSCIP <br />Soil Laver Total Shon Term Construction <br />Settlement (inches) <br />Clay layer to 35fbg 0.5 10 <br />I <br />:t