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Refractory Mortar Query - Forno Bravo Forum: The Wood-Fired Oven Community

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I'm Peter Reinhart! Ask Me Anything! Monday, February 15, 2016 7:00-8:00 pm EST

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.

Ask Me Anything New Forum Feature

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.

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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Refractory Mortar Query

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  • Refractory Mortar Query

    I have just joined this forum to get some advice and ideas on building a 42inch Pompeii oven and have already learnt so much.
    I .live in Perth Western Australia and am finding it very hard to get some advice on refractory mortars.
    The advice that the suppliers here give is that the refractory mortar can only be applied 5 or 6 millimetres thick and if it is applied any thicker it will crack and fall out.
    Can anyone give me some advise on that or would I be better off mixing my own mortar using portland cement lime fireclay and sand,as I have seen mentioned in this forum.
    Any advise would be much appreciated

  • #2
    Re: Refractory Mortar Query

    I would think you could add a coarser aggregate like fireclay or sand to the refractory mortar to allow a larger joint.

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    • #3
      Re: Refractory Mortar Query

      I'm in Perth and have built 2 ovens now, and just starting my third - email me and I will give you a list of suppliers and some pics if you like

      Garry

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      • #4
        Re: Refractory Mortar Query

        "I would think you could add a coarser aggregate like fireclay or sand to the refractory mortar to allow a larger joint."

        Deano is right. For the joints wider than 5 to 6 mm, you can "entend" the mortar with masonry sand, mix 1:1 with the mortar. Beyond about 12 to 15 mm, best to fill with some firebrick shims.

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