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Cracking concrete wall joints

Discussion in 'Renovation & Home Improvement' started by jafeica, 10th Sep, 2015.

  1. jafeica

    jafeica Well-Known Member

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    Anyone have any experience with repairing cracked joints in concrete wall?

    I attach some photos below.

    How bad is this and what product do you use to repair?

    Thanks IMG_2666.JPG IMG_2661.JPG IMG_2663.JPG IMG_2664.JPG
     
  2. Handyandy

    Handyandy Well-Known Member

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    That doesn't look like a concrete wall.

    This is based on the makeup of the window which looks like it's set in a brick veneer structure.

    More likely to be gyprock.

    Looks like there is building /foundation movement happening which will continue to happen as the ground dries out and shrinks and the get wet again and swells.

    No matter what you use to cover up the cracks they will continue to reoccur with the ground movements.

    You can try some no more gaps which remains flexible and move. Use it sparingly and wash of any excess with a wet sponge.

    Cheers
     
    Be Developer likes this.
  3. Be Developer

    Be Developer Property Developer Business Member

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    As said above,

    Seems like slab movement!

    Could be case of underpinning it or keep soil moist/dry as needed.
     
    Brian84 likes this.
  4. jafeica

    jafeica Well-Known Member

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    Not sure if makes a difference but its a 1960's concrete house, so its been there for 50+ years
     
  5. Be Developer

    Be Developer Property Developer Business Member

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    Best to get qualified structural engineer to look at it!
     
  6. WestOz

    WestOz Well-Known Member

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    That's some major cracking for an old joint considering it looks like its had some previous TLC.

    Agree with handy but looking through the window its a big block, has any major earthworks/redevelopment been happening next door (or underground) etc?
    May have a claim for damages
     
  7. Brian84

    Brian84 Well-Known Member

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    I agree with be developer in regards to getting an engineer out to have a look. For repairs if it is a concrete/brick wall you can use an acrylic render which allows for movement and won't crack as easy as other products. You could also use sikaflex and then paint over it.

    You need to get to the bottom of the problem before any cosmetic fixing.
     
  8. Scott No Mates

    Scott No Mates Well-Known Member

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    Last edited: 11th Sep, 2015