- A2.3.7
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Road Type 0 & 1
The preferred binder course mixture to PD 6691 is AC20 dense bin 40/60 with the wheel tracking requirements meeting classifications 2 for road Type 0 and 1 or 2 for road Type 1. - A2.3.8
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Road Types 2, 3 & 4
The preferred binder course mixture to PD 6691 is AC20 dense bin 100/150. - A2.3.9
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Footways, footpaths and cycle tracks
The binder course mixture in footways, footpaths and cycle tracks must be either AC20 dense bin 100/150 or AC14 dense bin 100/150. For hand compaction (see S6.5) AC14 dense bin 100/150 is preferred. The binder content (Bact) can be specified to be higher than in PD 6691 Table B.15 to enhance workability during installation and improve in-service life.
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