SECTION 033000 - CAST-IN-PLACE CONCRETE

Sludge Treatment Project Engineered Container Retrieval and Transfer System January 2012
2. Inspect pumps for proper rotation.
3. Inspect air vents at high points of system and determine if all are installed and operating
freely (automatic type), or bleed air completely (manual type).
4. Set temperature controls so all coils are calling for full flow.
5. Inspect and set operating temperatures of hydronic equipment, such as boilers, chillers,
cooling towers, to specified values.
6. Verify lubrication of motors and bearings.
D. Backfill:
1. A 4-inch layer of sand or fine gravel shall be placed and tamped in the trench to provide a
uniform bedding for the pipe.
2. Immediately after piping is installed in trench, a partial backfill shall be provided in
middle of each unit leaving joints exposed for inspection before hydrostatic tests. After
all thrust blocks are installed, a hydrostatic test shall be performed.
3. After hydrostatic testing, final backfill of selected earth shall be hand-packed and handtamped
to 6" minimum over top of jacket. Remainder of backfill shall be free of large
boulders, rocks over 6" in diameter, frozen earth, or foreign matter. Do not furnish
wheeled or tracked vehicles for tamping of backfill.
E. Cleanup
1. Remove rubbish, debris and waste materials and legally dispose off of the Project site.
Contract 44577 KW Annex – Rev. E 44577-CSI-SPEC-001 232113 - 14