Impact rolling compacts the ground through the rotation of a non-circular rolling module delivering insitu compaction with significant densification and strength improvement.
The square impact rollers are towed behind a tractor running at speeds of 10-12km/h. A number of passes are undertaken to ensure the compacting energy is applied evenly across the treatment area.
Testing can be simple and direct, specialised and sophisticated, intrusive or non-intrusive:
- Settlement monitoring - a robust means of verifying impact roller effectiveness
- “effective refusal” indicates maximum effect