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How wide can joints be in mortar for dwarf wall greenhouse

Discussion in 'Building' started by Eamman, 13 Jul 2020.

  1. Eamman

    Eamman

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    What about adding more cement if it's too wet? Bad idea?
     
    Last edited: 17 Jul 2020
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  3. Eamman

    Eamman

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    Probably unfair to ask but you say a 4 to 1 mix above in that bucket do know how much water you used for that? Also should I level bricks lengthways and widthways?
     
    Last edited: 17 Jul 2020
  4. cdbe

    cdbe

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    If it's too wet and more sand/cement at 4:1. The water depends on how wet the sand is, you want something where if you pick up a trowel full it will settle on it but not drip off.

    Working to a line will get the bricks level lengthways, front to back you want the face vertical, not the top level, however if the bricks are uniform this should be one and the same. My brother in-law built his entire garage by leveling each brick front to back, despite my dad (retired bricklayer) telling him he didn't need to, but it worked for him, and if it helps your confidence go for it.
    There's loads you will quickly pick up as you go, for example if you tap one end of a brick down the other end will rise up - you need to aim for just past the middle, you'll soon know when your mortar is getting unworkable and needs livening up - because you won't be able to work with it!
     
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  5. Eamman

    Eamman

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    What I meant is wouldn't the added cement dry out the sand a bit and make it better? By the face you mean the side facing out that one sees? I thought one would at least need the corner bricks level each way, everything refers to those bricks?
     
  6. Eamman

    Eamman

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    What do you mean by past the middle? how do you liven up the mortar?
     
    Last edited: 17 Jul 2020
  7. cdbe

    cdbe

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    If you add just cement (in large quantities) you will change the ratio of the mix.

    Level the corner bricks.

    If you tap the brick just past the middle towards the end that needs to go down then the whole brick will go down, hopefully more at the high end, if you tap right at the end the opposite end will seesaw up.

    Liven it up by mixing it a bit - that's what they're doing on YouTube when they throw it around their boards.

    I suggest you move on from the theory to the practical stage now! Things may become a lot clearer.

    Don't forget plasticiser and to post some pictures!
     
  8. Eamman

    Eamman

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    Last edited: 17 Jul 2020
  9. Eamman

    Eamman

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    I'm finding parts of the foundation are not level by 20mm or there abouts! This means some bricks are sitting on 20mm of mortar, is this too much on the base?
     
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  11. sircerebus666

    sircerebus666

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    No that's fine , just make sure your first course is spot on level wise
     
  12. Eamman

    Eamman

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    So far so good, have one long side completed and half a short side! All levels far!
     
  13. stuart45

    stuart45

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    Well done.
    Don't forget to stick some photos on.
     
  14. Eamman

    Eamman

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    I'm taking the scenic route doing one brick at a time, and getting it level lengthways and sideways!
     
  15. Eamman

    Eamman

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    Here's a question for you,is there a safe time to lay bricks before expected rain comes, for instance, the day before 2 days before, or should one wait for reasonably dry weather?
     
    Last edited: 2 Aug 2020 at 9:40 AM
  16. kingandy2nd

    kingandy2nd

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    Just make sure it’s covered up once laid any you’ll be fine.
     
  17. Eamman

    Eamman

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    How 'dry' can they be before rain affects the fresh mortar?
     
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