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- Radon emanation from stopes backfilled with cemented uranium mill tailings
- Building seals by pneumatic stowing in mine closure operations
- Sealing openings in abandoned mines by pneumatic stowing
- Inverted pyramid-shaped plugs for closing abandoned mine shafts :Galena, KS, demonstration project
- Bulkheads and drains for high sandfill stopes
- Backfill properties of total tailings