Laserfiche WebLink
<� t <br />CASCADE GE07ECHNICAL <br />November 16, 1988 <br />Job No. 8811-20G <br />Rainier Capital Management <br />Page 4 <br />cover for frost protection. <br />view the footing excavation <br />soils. <br />StructuraZ Fill <br />t j <br />We recommend that we be engaged to <br />prior to forming, to confirm beating <br />If structural fill is required, it should be placed on a base of <br />firm native soil. Imported fill should consist of clean granular <br />material conforming to the following gradation. <br />Sieve Siz� <br />4 inch <br />#4 <br />#200 <br />Percent Passinq <br />100 <br />25 - 75 <br />10 maximum (based on <br />fraction passing the <br />#4 sieve.) <br />• Wet weathec conditions may require that an all-weather fill having <br />less than five (5) percent minus 200 size material, based on the <br />fraction passing the #4 sieve; be used. If weather conditions <br />permit and the moisture content can be carefully controlled, it may <br />be possible to reuse a portion of selected on-site soil which does <br />not contain debris. <br />Fill should be placed in twelve (12) inch lifts and compacted to at <br />least 95 percent of the ASTM D-1557 maximum dry density. <br />Slab on Grade <br />We expect the c�;t for the ba�:ment to expose firm, native silty <br />sand with gravel, suitable for slab support. We recommend the <br />placement of fouc (4) inches of washed sand or crushed rock under <br />the slab to form a capillary break. The capillary break material <br />