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Help with huge cracks before curing - Forno Bravo Forum: The Wood-Fired Oven Community

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Forno Bravo Forum Community,

You will notice a new forum at the top of the main page called, "Ask Me Anything". This forum will be used for live one hour "Ask Me Anything" (AMA) sessions hosted by people who are knowledgeable in different areas pertaining to wood fired ovens. How it works:
- Each AMA will have a "sticky" thread where the community can post questions they would like answered during the live session. This will allow everyone to participate even if you can't be online for the live session. These questions will not be answered by the host until the live AMA; if you need an answer quickly, you should post it in the appropriate Forum area for the community to respond.
- Another thread will be posted for the live AMA. Registered users who are logged in during the live session can interact with the host by asking questions and receiving responses.
- The live thread will remain in the AMA forum to view after the session.

To kick off our AMA feature, we have invited author, chef and master bread maker and host of Pizza Quest, Peter Reinhart, to be our first host! Peter will be in the Forum on Monday, February 15th, from 7:00 - 8:00 pm EST. If you are unable to be online during the live session, you can post your questions in the sticky post. Peter will answer those questions during the live session on February 15th. You can view Peter's answers to your questions as well as what happened during the live session in the session thread.

We hope you enjoy this new feature! Please let us know if there is a topic that you'd like to have as an AMA and we'll look for a host!

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Help with huge cracks before curing

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  • Help with huge cracks before curing

    When I built a form for the opening arch and vent, the plywood took up the entire space of the opening--mistake.

    This made it VERY difficult to remove--note if you are interested in making an arch form out of plywood, make one that doesn't go all the way down to the floor of the dome.

    Anyhow, in the midst of my pulling, prying, etc. to get this form out of the opening, some of the bricks were slightly moved causing major cracking along the back of the opening and on the arch.

    What do I have to do to make it solid again?

    Thanks so much for your help!

    Here are a few pics--one is of the beginning of my fight with my not-so-thought-out form and the others are of the cracking.

  • #2
    Re: Help with huge cracks before curing

    Uusing a wetter than normal mortar squeeze as much morter into the crack as possible then carry on.

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    • #3
      Re: Help with huge cracks before curing

      Sorry to see this, a good lesson for all builders - use shims to hold up the arch form or use what I call a cheater strip (a bottom piece of 1x2 that I screwed to the plywood which I had "short cut" by about 1/2") . when I was ready, I just removed 3 drywall screws and the form dropped right out.
      As for the crack, Neil's advice about covers it, you may want to grind or dig out the crack just a bit - it never hurts if you have a clean "V" groove to patch as opposed to a jagged crack.

      RT

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      • #4
        Re: Help with huge cracks before curing

        Sorry it cracked for you. If doing it again try a plastic strip over the wooden form, also taperthe form slightly and put some wedges under the bottom. When removing the form pull out the wedges first and the form should slide out relatively easily, without wrecking your work.
        Kindled with zeal and fired with passion.

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        • #5
          Re: Help with huge cracks before curing

          Thanks for the help, guys. I did just chip away as much as I could around the back and make the mortar mix really soupy and am hoping that all is well. Also, I just lifted the arch out and chipped away the old mortar on the sides and tried again. It is now looking as good as new.

          Thanks again for saving me from a total panic attack!

          Claire

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