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Lump in concrete floor

Discussion in 'General DIY' started by smollions, 8 Sep 2020.

  1. smollions

    smollions

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    Over time I've noticed this lump forming in just one area of our floor... First I thought it would be a leaking pipe but there's no piping under that part and our boiler hasnt experienced any pressure drops. I believe this concrete floor was laid down like 30 years ago. Any idea what it could be?

    Also, what's the best way to reduce this? Chisel it down and level with some leveling compound?
     

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  2. jj4091

    jj4091

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    Is the lump definitely in the concrete or is the flooring distorted?
     
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  4. foxhole

    foxhole

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    Looks like heat distorted laminate.
     
  5. smollions

    smollions

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    It's vinyl but it's bulging under that
     
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  7. smollions

    smollions

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    It might be the screed on top? I'll pull it up soon.
     
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