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Cavity fill

Discussion in 'Building' started by Gavin123, 28 Jul 2020.

  1. Gavin123

    Gavin123

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    Hi my cavity walls fall half a metre below ground,just wondering why a weak semi dry mix is required,I understand for the walls not to cave in,but why a weak mix,couldn't I over order on c25 mix for the floor slab and fill cavity with this,save loads of time..

    Thanks
     
  2. denso13

    denso13

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    Yes, no problem.
     
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  4. Gavin123

    Gavin123

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    Great thanks for quick reply,just strange every where you look it's always weak mix..

    Thanks again
     
  5. denso13

    denso13

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    Weak mix is specified as it's all that's required but it doesn't mean you can't go stronger.
     
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  7. Mobo_14

    Mobo_14

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    Wee tip always do the cavity fill first (y)
     
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