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Another mortar question . - Forno Bravo Forum: The Wood-Fired Oven Community

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Another mortar question .

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  • Another mortar question .

    Hello everybody , is was just curious if any one can tell me if it's normal that the mortar is cracking a little bit when it is still wet. Ok ok hold on I need to explain, I'm using the poor mans mix of fireclay, sand, portland, n lime. I am soaking my bricks for about 5. Well when I am laying the brick for the dome I notice after about 20 min there are little hairline crack vertically along the brick. Could I have moved them not knowing ? Is my mix to dry or to wet? Just not sure anyone know if it's normal. Thanks a bunch. - Leo

  • #2
    Re: Another mortar question .

    Usually it's a sign of being too wet.
    Check out my pictures here:
    http://www.fornobravo.com/forum/f8/les-build-4207.html

    If at first you don't succeed... Skydiving isn't for you.

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    • #3
      Re: Another mortar question .

      Be sure to soak your bricks until they stop bubbling too. That way your mortar can be a bit drier- you won't have to hydrate the bricks with it!

      Mortar should be sort of like peanut butter.
      Elizabeth

      http://www.fornobravo.com/forum/f8/e...html#post41545

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      • #4
        Re: Another mortar question .

        Thank u well will it be a problem so far.? I did 3 rows of the dome. Only saw a few little splits like these. And yes I soak the brick for about 5. So should I be worried?

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        • #5
          Re: Another mortar question .

          NO. Small cracks have not been an issue (don't know if large ones have been an issue). I suggest you cover it with the FB blanket and I think you will be good.

          Les...
          Check out my pictures here:
          http://www.fornobravo.com/forum/f8/les-build-4207.html

          If at first you don't succeed... Skydiving isn't for you.

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          • #6
            Re: Another mortar question .

            You can always buy a striking tool for about $5 and tool the mortar joints about 45 or so minutes after you set the bricks. That will rebond the mortar to the adjacent bricks if it has pulled away and close any small cracks in the middle of the mortar joint.
            GJBingham
            -----------------------------------
            Everyone makes mistakes. The trick is to make mistakes when nobody is looking.

            -

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            • #7
              Re: Another mortar question .

              thank u everyone for your advice

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