Grain Systems PNEG-1510 - Manual (Page 15)

3. Foundation Requirements
PNEG-1510 Top Dry 24', 30' and 36' Manual Batch 15
Frost Free Pad
NOTES:
1. Foundation site should be well drained and free of vegetation or debris.
2. Foundation design is based on a minimum soil bearing capacity of 3000 lbs/ft
2
. If soil bearing
capacity is in doubt, contact a local soil testing engineer.
3. Concrete shall have a minimum compressive strength of 3000 PSI at 28 days.
4. Requirements for reinforcement do not include overlap.
5. Lap all circumferential bars 35 bar diameters and stagger all laps in plan 3'-0".
6. All material used for backfill inside the ring wall should be a clean, well graded, crushed stone or
sand-gravel mixture. Backfill should be placed in 6" lifts and well compacted.
Figure 3F