web analytics
Refractory concrete - Forno Bravo Forum: The Wood-Fired Oven Community


1 of 2 < >


Hello, Forno Bravo Community Forum members.

As many may have noticed already, the Community Forum site was briefly down today. While working on scheduled routine maintenance, we encountered an error when trying to add a software update. As the site is now back up and running, some of you may notice that some recent data has been misplaced from November 10th up to today. We are currently working on resolving the issue. The forum has full operational capabilities and we encourage all forum members to continue actively posting in the threads.

We apologize for any inconvenience that this issue may have caused you. The Forno Bravo family values each and every member of our community. If you have any issues or concerns, please feel free to let us know on our issues thread here:


Thank you for understanding.
2 of 2 < >

Forno Bravo Forum Thread Message

Hello, Forno Bravo Community Forum Members!

The Forno Bravo team has heard the feedback in regards to the community forum. We wanted to take the time to re-enforce our commitment to a fully engaged Forum with professional moderation.

Our top priority as a company is to fix all forum errors and issues that you are experiencing. As we are swiftly working on these problems, we want to say that we highly value the Forum Bravo Community Forum and every single community forum member.

We have set up this thread so that every member can address any concerns, issues and questions about the forum. Please feel free to ask whatever you would like in regards to the forum; let us know what issues you are experiencing so we can work on resolving them as fast as possible. However, we stress that we would like constructive engagement, so please be specific about the issue you are experiencing.

Thank you for all of your patience and continued support.

Link to topic: http://www.fornobravo.com/community/...with-new-forum
See more
See less

Refractory concrete

  • Filter
  • Time
  • Show
Clear All
new posts

  • Refractory concrete

    Good morning all,
    I am hoping to go for dome, shape oven which I was going to make out of clay, but they crack too easily and I've heard of Refractory concrete could I use that instead?
    Will I need to insulate it on the outside?
    I haven't made the pizza floor yet, would it be a good idea to make it out of the same stuff, and would I need to insulate the underside, as I have made a cavity with a door for storing wood and logs. I would be grateful for any help as always.

  • #2
    Re: Refractory concrete

    Will I need to insulate it on the outside?
    Yes, absolutely.
    would I need to insulate the underside
    Yes, absolutely. Your oven will be useless without insulation. You will burn cords of wood and only bring it up to pizza temperature with the greatest difficulty.
    Refractory concrete could I use that instead?
    Refractory concrete is useful in places like the UK where firebricks are irrationally expensive. It is more difficult to use than ordinary portland concretes.

    There are solid, and insulating castables. You want the solid kind for the inside of the dome. You will find that the insulating kind is far more expensive than vermiculite concrete, and has no particular benefit at the temperatures we use. Whatever you use to build your dome, you are probably going to want to spring for a firebrick floor. It's your cooking surface, and you may not be wanting to scrape peels over chalky concrete.
    My geodesic oven project: part 1, part 2


    • #3
      Re: Refractory concrete

      You can cast the floor in castable dense refractory, however if you do it in one piece it is likely to crack because of the uneven heating and resulting expansion. It is expensive stuff, you are probably better off using firebricks without mortar between them.
      Last edited by david s; 04-17-2011, 02:09 PM. Reason: spelling error
      Kindled with zeal and fired with passion.


      • #4
        Re: Refractory concrete

        Thanks very much for the advice lads


        • #5
          Re: Refractory concrete

          Here is my build for a refractory concrete dome.
          Ive since knocked it over an redone it in fire brick but it served me well.
          Wood Fired Pizza Oven : BrikiWiki the home of online brickwork.

          Cheers, from a Lancy lad
          The English language was invented by people who couldnt spell.

          My Build.



          • #6
            Re: Refractory concrete

            Thanks mate, will prob go fore fire bricks.