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Bid Help

Discussion in 'Hardscaping' started by mbella, Mar 17, 2005.

  1. mbella

    mbella LawnSite Bronze Member
    Posts: 1,284

    I'm bidding a a paver driveway. At the main entrance of the home there is a horseshoe shaped area of exposed aggregate concrete. I know how to figure the amount of concrete and it comes to 85 yards. What I'm not sure of is how to figure how much it weighs and it is too late to make calls. Any help would be greatly appreciates.
  2. mbella

    mbella LawnSite Bronze Member
    Posts: 1,284

    I meant greatly appreciated. Somebody just told me roughly 2 tons per yard.
  3. cgland

    cgland LawnSite Bronze Member
    Posts: 1,929

    Well, I think it would be closer to 3,000 lbs. per yard. You figure 3/4" mod (just an example)weighs 2,000/yd and add water which weighs around 7 or 8 lbs. per gallon. I would say definately not less than 2,500/yd.

  4. mbella

    mbella LawnSite Bronze Member
    Posts: 1,284

    Thanks Chris. One of the problems is that I don't know if the aggregate was seeded or mixed. So, I don't know if it's full depth or just a surface application.

    Either way, I will probably propose going over the existing slab. I don't usually like to do that, but the existing slab is 20 years old, 8" thick and doesn't even have a crack. The savings would be >$10,000.00.
  5. bigviclbi

    bigviclbi LawnSite Senior Member
    from nj
    Posts: 894

    How do you figure yardage on concrete. Example if i am removing a driveway 30x15 how many yards of concrete is that? I always just guess on how big a dumpster I would need.
  6. northmichigan

    northmichigan LawnSite Member
    Posts: 133

    if the drive is 6" thick then multiply .5 x 30 x 15. then add a little extra for sand stuck on the cement
    . good luck!
  7. northmichigan

    northmichigan LawnSite Member
    Posts: 133

    i forgot 'yardage' is the square footage divided by 27.

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