- S6.8.1
- All surfaces must be free of contamination before applying the bond coat. This is especially important after the removal of any sand separation layer.
- S6.8.2
- A bond coat must be applied to the surface of all bound layers before overlaying in all circumstances.
- S6.8.3
- The bond coat must be applied at a rate that ensures a minimum residual bitumen content of 0.15 kg/m2 .
- S6.8.4
- Multiple lifts of the same material laid during a single visit on the same day do not require treatment between lifts. However, a bond coat must be applied before placing the permanent surface course for work carried out in accordance with S6.5.
- S6.8.5
- A bitumen emulsion edge sealant may be used as a bond coat in small openings and narrow trenches.
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