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Thread: Demonstration of concrete vibration - GIF

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    Jon
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    johncg (01-25-2021), nova_robotics (01-23-2021), Rangi (01-23-2021)

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    Interesting difference in the consolidation between the left and right halves of that concrete. I wonder it is a demonstration some kind of admixture?

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    In real life situations if you vibrate concrete that long all the aggregate will sink to the bottom and the sand will float on top leaving a very weak concrete.

    Vince

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    Supporting Member hemmjo's Avatar
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    If you watch closely, the left half was done in 3-5 seconds. The right half still contained air after almost a minute.

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    That's why I prefer steel frame buildings. I don't like concrete surprises!

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    It is very easy to burst forms open with a vibrator



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