1. An alternative method of repairing the surface after backfilling and compaction is the use of heavy duty corrugated mats. These are carried to the area on purpose designed trailers.
2. The mats are unrolled
3. Using special towing adaptors, they are tensioned to remove all slack.
4. The ends of the mats are secured by expanding bolts which pass through panels into undamaged areas of the runway.