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Thread: Grader ripping old pavement - GIF

  1. #1
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    Altair's Avatar
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    Grader ripping old pavement - GIF


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    EnginePaul (Jan 26, 2023), mwmkravchenko (Jan 24, 2023), nova_robotics (Jan 24, 2023)

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    Supporting Member mwmkravchenko's Avatar
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    I've seen so many different ways of doing this. From sheeps foot rollers to high hoes to grinders.

    This is cool!

    Mark

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    The GIF seems to be speeded up. I would like to see the blade configuration that makes that possible.

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    mwmkravchenko (Jan 24, 2023)

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    Supporting Member mwmkravchenko's Avatar
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    Quote Originally Posted by Wildwilly View Post
    The GIF seems to be speeded up. I would like to see the blade configuration that makes that possible.
    I agree. If that is a regular blade say goodbye to the top rather quickly. Plus that was awfully pliable pavement.

    Mark

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    ductape (Jan 25, 2023), Frank S (Jan 25, 2023)

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    He sure did catch up quickly to the guy cutting the pavement!
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    mwmkravchenko (Jan 25, 2023)

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    Supporting Member Frank S's Avatar
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    Quote Originally Posted by mwmkravchenko View Post
    I agree. If that is a regular blade say goodbye to the top rather quickly. Plus that was awfully pliable pavement.

    Mark
    A good grader operator would know how to rotate the blade 180°from normal as if he were going to grade while driving in reverse. Most graders can lay the blade down quite a bit Almost to horizontal. If you watch the vid in stop action the blade is not spun 180° so he is not using the cutting edge. But there is almost a brief glimpse of something that could be an attachment to the top of the blade with a cutting edge It is nearly impossible to see, and I could be mistaken about it even being there.
    But logic would dictate there would have be some attachment with a cutting edge to get under the pavement.
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    Supporting Member mwmkravchenko's Avatar
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    Quote Originally Posted by Frank S View Post
    A good grader operator would know how to rotate the blade 180°from normal as if he were going to grade while driving in reverse. Most graders can lay the blade down quite a bit Almost to horizontal. If you watch the vid in stop action the blade is not spun 180° so he is not using the cutting edge. But there is almost a brief glimpse of something that could be an attachment to the top of the blade with a cutting edge It is nearly impossible to see, and I could be mistaken about it even being there.
    But logic would dictate there would have be some attachment with a cutting edge to get under the pavement.
    Yup. Agree. Been around a few graders. Never operated. Just observed. And I agree about some kind of attachment.

    Mark

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    I've seen a homemade triangle-shaped boot with hardened edges doing something like this before. It didn't work anywhere near that quickly. The video doesn't allow a very good look at it. Completely agree with how the pavement is reacting. That is very not normal.

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    is "pavement" code for asphalt or some other bitumen composite material? - the broken edges are more black than grey, so I was thinking it was asphalt over a road base bed.

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    Supporting Member mwmkravchenko's Avatar
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    Quote Originally Posted by desbromilow View Post
    is "pavement" code for asphalt or some other bitumen composite material? - the broken edges are more black than grey, so I was thinking it was asphalt over a road base bed.
    Basically yes. Asphalt is a better term.



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