1. Visiting from the US? Why not try DIYnot.US instead? Click here to continue to DIYnot.US.
    Dismiss Notice

Minor cracks in mortar

Discussion in 'Building' started by Rob broom, 6 Jun 2021.

  1. Rob broom

    Rob broom

    Joined:
    17 Nov 2020
    Messages:
    42
    Thanks Received:
    0
    Country:
    United Kingdom
    Hi.

    There are few photos attached.

    Can I get some advise on what cause these cracks please?

    the blocks have been in place for about 2 or 3 months.

    the cracks are less than hairline.
    mortar mix was 4:1 sand cement with additive.

    Is it any if the following reasons?
    Thermal.
    Shrinkage.
    Drying out.
    Minor Settlement.
    Mortar mix ratio.
    Damp blocks during building work.

    or, a sign of more scary things like foundation issues?

    Any advice would be great as I am low in experience.

    thanks
     
    Last edited: 6 Jun 2021
  2. Rob broom

    Rob broom

    Joined:
    17 Nov 2020
    Messages:
    42
    Thanks Received:
    0
    Country:
    United Kingdom
    F2F764E1-89DF-438B-8AEA-01C970EAF90D.jpeg
     

    Attached Files:

  3. Sponsored Links
  4. stuart45

    stuart45

    Joined:
    13 Sep 2008
    Messages:
    3,139
    Thanks Received:
    482
    Location:
    Somerset
    Country:
    United Kingdom
    With blockwork it's generally shrinkage cracking as they dry out. Blocks are normally at their largest when laid, clay bricks at their smallest.
     
  5. Rob broom

    Rob broom

    Joined:
    17 Nov 2020
    Messages:
    42
    Thanks Received:
    0
    Country:
    United Kingdom
    Thanks for the reply!

    fingers crossed that it is nothing more than that.

    the other thing I should add is that the blocks were all stored outside and uncovered, and I didn’t cover the walls while i was building them.

    hopefully this all adds to the evidence of them being wet and drying out!

    thanks again!
     
  6. Sponsored Links
Loading...

Share This Page