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Red Asphalt speci

  • 1.  Red Asphalt speci

    Posted 12 days ago
    We have a developer wishing to use red asphalt in a residential development to give it an exclusivity look. We currently are discouraging red asphalt, especially in areas of heavy braking and turning due to early failures. However, this one is likely to get political. Does anyone have a good, proven speci for red asphalt that is not suffering the premature failure issues.

    Kirsten Thrush
    City of Wanneroo
    Coordinator Asset Planning
    Pro Cert 2

  • 2.  RE: Red Asphalt speci

    Posted 11 days ago
    It has been used in Sydney for Bus Lanes as SMA7.  It is expensive and I presume the Council will own the road with red asphalt and will be required to replace it with red asphalt.  Apart from early distress that may occur, it will become lighter over time and only likely to look good for 12 to 24 months.
    For more information, please write to me at

    George Vorobieff
    Frenches Forest

    Pro Cert 2

  • 3.  RE: Red Asphalt speci

    Posted 9 days ago
    Hello Kirsten,

    There are three options for red asphalt:
    1. Using coloured asphalt - It can be SMA (as George mentioned) or SuperPave. Specs for these I think are same as black asphalt, i.e. same mix design. These are expensive therefore my suggestion is to use normal asphalt for bottom layers and only top layer is red asphalt.
    2. Using Open Graded asphalt - Use an Open Graded Asphalt (this has more air voids than typical asphalt) and filling the voids with coloured concrete slurry. Performance is expected to be better than the first option as it is a blend of asphalt and concrete.
    3. Using red paint - This is simply colouring the asphalt surface with red colour. This will require regular application of paint as and when required.

    In Vancouver we were planning to use first option but material was not available locally. Third option is used at bus landings at selected locations.

    Sukhwinder Dhanoa
    City of Vancouver
    Asset Manager
    Vancouver BC

    Pro Cert 2