Cracking concrete wall joints

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

 

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

 

As said above,

Seems like slab movement!

Could be case of underpinning it or keep soil moist/dry as needed.

 

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

 

Best to get qualified structural engineer to look at it!

 

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

 

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.

 

This is a DIY solution