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Fireclay Mortar Formula - Forno Bravo Forum: The Wood-Fired Oven Community



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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Fireclay Mortar Formula

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  • Fireclay Mortar Formula

    Your Portland cement fireclay Mortar formula has "1 part lime", is this the garden variety "lime" that I can buy at the local garden store? like Home Depot or Lowes.

    Nobody knows what this stuff is? Everybody says that it is different stuff? who knows what they are talking about?

  • #2
    Re: Fireclay Mortar Formula

    Garden lime and mason's lime are not the same thing. You want mason's lime, probably type S, although somebody more knowledgeable than I will have to chime in on that.


    • #3
      Re: Fireclay Mortar Formula

      where can I purchase mason's lime in North Carolina?
      Is it Green, is it made from limes? just kidding.


      • #4
        Re: Fireclay Mortar Formula

        A google maps search of greensboro turns up a half dozen masonry suppliers and brick yards in the area.

        Guaranteed Supply Company - for the best in building materials!

        Looks like a likely suspect from a casual glance.
        My geodesic oven project: part 1, part 2


        • #5
          Re: Fireclay Mortar Formula

          Wow. There is so much out there to learn.

          Mason's Lime | Type N Normal Hydrated Lime | Type S Special Hydrated Lime | Mason%27s Lime

          You are looking for Type S mason's lime -- or the basic mason's lime your supply company carries. The bags I have used said Type S.

          Pizza Ovens
          Outdoor Fireplaces


          • #6
            Re: Fireclay Mortar Formula

            Some cement companies use hydrated & double hydrated lime as an additive when they are milling masonry cement so the lime is an integral part of the cement. There is also a product called Portland Cement and Lime (PCL) which is T-I cement and Lime milled together. The company I work for manufactures both and when I built my oven I tested both products and found the regular Type-N masonry cement to be more workable. You "might" find these products at Home Depot or Lowes and you will definitely find them at local brick and block supply stores... 2 of the 7 within 20 miles of me even carried the fireclay and firebrick.


            • #7
              Re: Fireclay Mortar Formula

              Living here in Mississippi I have found the best supplier to be your local brick yard. Here we have Old South brick and they have had anything I needed, firebrick, fireclay, type N mortar(equal parts portland cement and lime), hydrated lime(which is what many call mason's lime). I think you will have the best luck there.
              "Making the simple complicated is commonplace; making the complicated simple, awesomely simple, that's creativity. " Charles Mingus
              "Build at least two brick ovens...one to make all the mistakes on and the other to be just like you dreamed of!" Dutch