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What type of cement do I use for a drain inspection chamber

Discussion in 'Building' started by Papag1, 26 Jan 2011.

  1. Papag1

    Papag1

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    Hi I have a crumbling drain inspection chamber which is shedding bits of concrete into the drain with obvious consequences, I have tried 4/1 sand cement 4/1 sharp sand cement but it still cracks away after the frosts , what mix materials should I use so this wont happen ?
    Thanks in anticipation of answers
     
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  3. Papag1

    Papag1

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    bump
     
  4. Hugh Jaleak

    Hugh Jaleak

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  5. stuart45

    stuart45

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    Is it for the benching?
     
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  7. Papag1

    Papag1

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    Yes if that's the name for the concrete that surrounds the chamber which is crumbling.
     
  8. stuart45

    stuart45

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    Benching is the concrete at the bottom of the chamber that slopes up from the half channel.
     
  9. Nige F

    Nige F

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  10. ^woody^

    ^woody^

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    If just trying to gob up the face of the chamber, anything you try to use will just get blown off after a while.

    If you want something to actually stick, then you will need some sort of epoxy mortar product, and a sound keyed wall to stick it to

    But is this job really necessary?
     
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