Pavers OVER Asphalt?

Discussion in 'Hardscaping' started by NewHorizon's Land, Jun 30, 2007.

  1. NewHorizon's Land

    NewHorizon's Land LawnSite Senior Member
    Posts: 690

    My dad was in Baltimore on Thursday and at one of the Medical centers he noticed an asphalt crew working with a paver crew. He said it appeared that the asphalt was the base for the pavers. The asphalt was being tamped and he said no sand was on the job and the crew was laying pavers. Why would pavers be over asphalt?

    Justin
     
  2. Matt k

    Matt k LawnSite Member
    Posts: 60

    This is a coommon practice for streets and parking lots. Asphalt is a suitable setting bed for pavers and can be very cost effective on larger jobs. A paving machine screeds the path and the ICP follows behind them.
     
  3. NewHorizon's Land

    NewHorizon's Land LawnSite Senior Member
    Posts: 690

    Is sand swept in the joints?
     
  4. ChampionLS

    ChampionLS LawnSite Bronze Member
    Posts: 1,066

    You can put pavers on anything that's flat. No sand=no tamping. But.. the base must be perfect. I see a lot of State jobs where they lay pavers right on poured concrete.
     
  5. Matt k

    Matt k LawnSite Member
    Posts: 60

    Yes you still use sand and in some cases, depending on how fresh the blacktop is, you can take a tamper or usually a roller on static and set the pavers.
     
  6. NewHorizon's Land

    NewHorizon's Land LawnSite Senior Member
    Posts: 690

    So the pavers are set in the hot asphalt? Just seemed odd. I guess I learned something new.
     
  7. pavespec

    pavespec LawnSite Member
    from nyc, ny
    Posts: 10

    Hanover Arch. Products makes both concrete and asphalt pavers. One of there specs allows for the pavers to be set on a asphalt setting bed. This is also called sheet asphalt. It is concrete sand and asphalt tar mixed in a hot mixing plant. As a setting bed it is expensive. Not all asphalt plants offer this mix. After this setting is screeded it has to be rolled. You must use a small roller or it will push out the setting bed. Then a neoprene glue is spread very thin on top of setting bed. The pavers are then laid and sand swept into the joints.
     
  8. ChampionLS

    ChampionLS LawnSite Bronze Member
    Posts: 1,066

    I don't think he meant the pavers were laid on hot tar... probably a pre-existing lot.
     
  9. TheKingNJ

    TheKingNJ LawnSite Senior Member
    Posts: 781

    wouldn't water sit on the asphalt below the pavers?
     
  10. McKeeLand

    McKeeLand LawnSite Senior Member
    Posts: 681

    i have seen pavers laid on hot screeded asphalt.
     

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