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New Innovations in Road Seal Treatments

New Innovations in Road Seal Treatments. 19 th South Australian Local Government Road & Works Conference BAROSSA – 25 th & 26 th August 2011 Warren Carter – National Technical Manager. Introduction. What are you trying to seal? Base (granular/stabilised) Existing seal Asphalt (new/old)

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New Innovations in Road Seal Treatments

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  1. New Innovations in Road Seal Treatments 19th South Australian Local Government Road & Works Conference BAROSSA – 25th & 26th August 2011 Warren Carter – National Technical Manager

  2. Introduction • What are you trying to seal? • Base (granular/stabilised) • Existing seal • Asphalt (new/old) • Concrete • Bridge deck (wood/concrete/steel) • What additional properties are desired? • Noise reduction • Water shedding • Friction

  3. Primes and Spray Seals Innovations Emulsion Primes Emulsion Precoats Binders Bitumen (local, imported) Polymer modified (SBS, PBD, crumbed, etc) Emulsions (HBCE, PME) Aggregates Recycled? Sprayers Variable application spray bars

  4. Primes and Spray Seals Innovations cont’d • BRP Road Patch • Maintenance products

  5. Sealing Asphalt • Crack sealing • Spray seal • Fog coat • Seals surface pores and cracks • Rejuvenators • Seals surface pores and cracks • May soften the existing surface binder (precautions?) • High skid resistant surfacings • Calcined bauxite • Delineating surfacings

  6. Sealing Asphalt cont’d • Asphalt overlays • AC • OG • SMA • UTA (proprietary products – smoothness, noise, skid resistance, water shedding, etc)

  7. Sealing Asphalt cont’d • Microsurfacing/slurry • Mats, ready roll pavements

  8. Sealing Concrete and Bridge Decks • Prime application is critical • QDP • Treatments • Spray seals, asphalt, etc • Diamond grinding

  9. Asphalt Innovations - Sustainability • RAP • Warm mix asphalt

  10. Questions?

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