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  • My progress

    As promissed here are some pics so far. includes base construction, slab construction mixing of perlite (50 micron), finished base with concrete slab and perlite insulating slab. We just finshed cutting the firebrick for the inside of the oven today but haven't downloaded the pics yet.

    Again, these are filipino construction methods and all hollow blocks will be stuccoed. Will post more soon. This is very intimidating, you know. John
    Our Facebook Page:http://www.facebook.com/pages/Stoneh...60738907277443

  • #2
    Re: My progress

    Looks good John! Keep us posted.
    Ken H. - Kentucky
    42" Pompeii

    Pompeii Oven Construction Video Updated!

    Oven Thread ... Enclosure Thread
    Cost Spreadsheet ... Picasa Web Album

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    • #3
      Re: My progress

      What we did yesterday
      Our Facebook Page:http://www.facebook.com/pages/Stoneh...60738907277443

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      • #4
        Re: My progress

        Did you insulate? It looks like the upright thin bricks that form the soldier course are sitting right on the support slab, and I can't see what's under the floor layer...
        My geodesic oven project: part 1, part 2

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        • #5
          Re: My progress

          What size are the bricks ? They look like 2 1/2 x 4 x 9 ?

          If so your shoulder bricks should be "edge on" so that your dome thickness is at least 4 inches.

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          • #6
            Re: My progress

            Yes, I have 4" of perlite/concrete where the firebrick are sitting. That lip is 2" of the perlite insulation. The firebrick are 1"x4"x7.5" and very inconsistent. I don't under quite understand what you mean by "on edge". Have been wondering how to get a 4" thick dome with these brick.
            Our Facebook Page:http://www.facebook.com/pages/Stoneh...60738907277443

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            • #7
              Re: My progress

              by "edge on" he means that the thickness, in your case the 1" side, should be facing in toward the hearth bricks. You can use either full height bricks or cut them in half, but the point is that you want the thickness of the soldier course and dome walls to be equivalent to half a brick, or 3.25" assuming yours are 7.5" long. I suppose you could do three concentric circles of soldiers to get to that, too.

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              • #8
                Re: My progress

                p.s. maybe add another layer of hearth bricks, too? The hearth of an oven built with "standard" firebrick like most of us have used is 2.5" thick.

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                • #9
                  Re: My progress

                  Something like this....?
                  Last edited by lwood; 08-28-2009, 01:22 AM.
                  Our Facebook Page:http://www.facebook.com/pages/Stoneh...60738907277443

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                  • #10
                    Re: My progress

                    yes, exactly

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                    • #11
                      Re: My progress

                      The ancient romans built many ovens with bricks almost exactly like that:

                      You can see the whole photo set at:
                      Pompeii Oven: Brick Oven Arch
                      My geodesic oven project: part 1, part 2

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                      • #12
                        Re: My progress

                        lwood

                        What is the inside diameter of your oven ? It looks pretty big.

                        Also, as splatgirl suggests, I recommend you go with at least two inches of hearth brick material, (and with all the voids filled with refractory mortar).

                        Are your bricks "fire bricks" or "refractory bricks"? These are made of a different material than normal building bricks (which are sometimes called, confusingly, "fired brick").
                        Last edited by Neil2; 08-28-2009, 10:11 AM.

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                        • #13
                          Re: My progress

                          Great thanks!!! The bricks are the only thing available here in provincial Philippines. They look like terra cotta tiles, close to the bricks in the ancient Roman oven. I guess I am following the ways of my ancestors. They say they are firebrick but who knows here. I need to pour 2" more perlite insulation anyway, so I think I will start over with the layout and add another layer of hearth brick. At least the brick is cheap, about 6 cents each. Hopefully it wont turn into a pile of dust on the first firing.
                          Last edited by lwood; 08-28-2009, 12:56 PM.
                          Our Facebook Page:http://www.facebook.com/pages/Stoneh...60738907277443

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                          • #14
                            Re: My progress

                            I think it'll be gorgeous looking inside with all those thin chains of bricks! Between that and the size of the oven, you are in for a seriously time consuming build!

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                            • #15
                              Re: My progress

                              "Hopefully it wont turn into a pile of dust on the first firing."

                              They won't. Even if they are the "wrong" bricks they will still last quite a while.

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