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<br />fl <br /> <br />LJ <br /> <br />II <br /> <br />u <br /> <br />I' <br /> <br />u <br /> <br />n <br /> <br />u <br /> <br />n <br /> <br />LJ <br /> <br />n <br /> <br />LJ <br /> <br />II <br /> <br />LJ <br /> <br />n <br /> <br />u <br /> <br />(" <br /> <br />LJ <br /> <br />I' <br /> <br />L.J <br /> <br />n <br /> <br />LJ <br /> <br />n <br /> <br />LJ <br /> <br />n <br /> <br />l--.J <br /> <br />n <br /> <br />u <br /> <br />n <br /> <br />w <br /> <br />,', <br /> <br />LJ <br /> <br />n <br /> <br />L.J <br /> <br />" <br /> <br />u <br /> <br />" <br /> <br />L.J <br /> <br />material, to prevent free water appearing on surface during or subsequent to compaction <br />operations. <br /> <br />1. <br /> <br />Remove and replace, or scarify and air dry, soil material that is too wet to permit <br />compaction to specified density. <br /> <br />2. Moisture content of soil shall be within 2% of the optimum. <br /> <br />3. <br /> <br />Soil material that has been removed because it is too wet to permit compaction, <br />but is otherwise satisfactory may be stockpiled or spread and allowed to dry. <br />Assist drying by discing harrowing or pulverizing until moisture content is <br />reduced to satisfactory value. <br /> <br />c. <br /> <br />Place fill material in layers not more than 12-inches loose depth for material compacted by <br />hand-operated tampers. Use manually operated sled-type vibratory compactors next to <br />structures and confined areas not accessible to heavy mechanical compaction equipment. <br /> <br />D. <br /> <br />If the Engineer shall determine that added moisture is required, water shall be applied by <br />sprinkler tanks or other sprinkler systems, which will insure uniform distribution of the <br />water over the area to be treated, distribution of the water over the area to be treated, and <br />give complete and accurate control of the amount of water to be used. If too much water <br />is added, the area shall be permitted to dry before compaction is continued. <br /> <br />E. <br /> <br />The Contractor shall supply all hose, piping, valves, sprinklers, pumps, sprinkler tanks, <br />hauling equipment, and all other materials and equipment necessary to place the water in <br />the fill in the manner specified. <br /> <br />3.03 BACKFILL AND FILL <br /> <br />06/05 <br /> <br />A. <br /> <br />Place specified soil material in layers to required subgrade elevations: <br /> <br />1. <br /> <br />In excavations, use satisfactory excavated or borrow material. <br /> <br />2. <br /> <br />Under grassed areas, use satisfactory excavated or borrow material. <br /> <br />3. <br /> <br />Under walks and pavements, use subbase material, or satisfactory excavated or <br />borrow material, or combination of both. Place shoulders along edges of subbase <br />course to prevent lateral movement with satisfactory excavated or borrow <br />material. <br /> <br />4. <br /> <br />Under steps, use subbase material. <br /> <br />5. <br /> <br />Under building slabs, use drainage fill material. <br /> <br />6. <br /> <br />Under piping and conduit, use subbase material where subbase is indicated under <br />piping or conduit; shape to fit bottom 90 degrees of cylinder. <br /> <br />02200-4 <br /> <br />03-4138.8 <br />