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Bituminous mixtures (A8.3)

Bituminous mixtures for permanent reinstatements permitted in A2 must be compacted to the in-situ air void requirements of S10.2.8. Guidance on compaction procedures that may be capable of achieving the specified air voids values is given in NGA8.
Compaction should be discontinued if the mixture shows any signs of distress, regardless of whether the minimum number of passes suggested in NGA8 have been applied.
Compacted materials must be capable of being wet flush cored as follows:
  1. Hot materials – upon reaching ambient temperature;
  2. PCSMs – at 6 months from the date of the permanent reinstatement.