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Hebel arch? - Forno Bravo Forum: The Wood-Fired Oven Community

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Photo Galleries are back! Instructions below.

Dear forum users,
Thank you for your patience with the Photo galleries. We've got your galleries online!
We have finished writing a custom script to migrate the PhotoPlog to vBulletin5’s albums.

Unfortunately V-Bulletin killed the "Photoplogs" in their software upgrade which was unforeseen and we're the first development group to have written a script for getting the galleries back... that said, it took some time to reverse engineer the code and get the albums to move over seamlessly!

Forum users will be able to access their “PhotoPlog” images through their user profile page by clicking on the “Media” tab.
They will also be able to browse other albums by going to the albums page. (On the forum site, there is a link in the black bar beside “Forums” to the albums.)

In order for users to create an album please follow the steps below.
1) Go to user profile page and click “Media”
2) Click Add Photos
3) Enter Photo Gallery Title in the first field
4) Click Upload or Select from Photo Album to add photos
5) Click Post
6) Once posted, the album will be created as a “Topic” on the albums page for the public to see. The topic title will be the “Photo Gallery Title” they created before uploading their photos.


To create this migration path we used vBulletin5’s default album structure. Unfortunately, it won’t work like the “PhotoPlog” but is an album/gallery component on the forum now.
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Hebel arch?

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  • Hebel arch?

    Hi. I have been reading about Hebel (Autoclaved Aerated Concrete) on this formum. Has anyone used it as a lintel into the oven? Cutting an arch out of this product seems easier than laying a brick arch or forming a concrete lintel.

    Will the product withstand the heat?

    Thanks
    Jase

  • #2
    Re: Hebel arch?

    I don't think anyone has tried it.

    And I'm not sure about the heat because I'm not familiar with the product.


    Dave
    My thread:
    http://www.fornobravo.com/forum/f8/d...ress-2476.html
    My costs:
    http://spreadsheets.google.com/pub?k...Xr0fvgxuh4s7Hw
    My pics:
    http://picasaweb.google.com/dawatsonator

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    • #3
      Re: Hebel arch?

      One memeber has used AAC as an under-oven insulation layer, with success. It's a good insulator, but I don't think it will stand up to direct contact with smoke or flame.
      My geodesic oven project: part 1, part 2

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      • #4
        Re: Hebel arch?

        I've used Hebel block for years as an under floor insulation, during my wood fired oven workshops, with great success.
        Although I've not used it internally I have tested it in a kiln to 1000 degrees C with little shrinkage or deteriation. At 1200 degrees C it certainly spalls and shrinks.
        If it was used as an arch I would make it thick as it certainly doesn't have great strength and be aware that being soft it you might find it wears from contact with the peel and door.

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        • #5
          Re: Hebel arch?

          Originally posted by pizzahead View Post
          Hi. I have been reading about Hebel (Autoclaved Aerated Concrete) on this formum. Has anyone used it as a lintel into the oven? Cutting an arch out of this product seems easier than laying a brick arch or forming a concrete lintel.

          Will the product withstand the heat?

          Thanks
          Jase
          I'm using it as my "under floor" insulation layer. It's quite brittle, but for your purposes, perhaps coating/rendering it with refractory cement would give it a tough outer layer?

          Comment


          • #6
            Re: Hebel arch?

            I used HEBEL to sit my oven on, its extremely brittle and cracked alot where we screwed it together. its been rendered and had no probs so far. Heat doesn't seem to bother it.
            Its very soft, you can dig away with it with your fingernail.
            Depending on the profile it has virtually no span strength and its expensive, the reinforcing material in it is no thicker than coat hanger wire, but it is very easy to work with.

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            • #7
              Re: Hebel arch?

              I used the Hebel blocks which had no reinforcing (600mm x 200mm x 100mm), and just glued them to 6mm compressed cement sheet with Hebel adhesive. No screws or nails required.
              I didn't think they were that expensive at $4 each from Bunnings.

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              • #8
                Re: Hebel arch?

                My experience is the less bonding of components in an oven the better.
                You have to work with the knowledge that the oven is constantly expanding on heating and contracting on cooling so better to allow gravity and sound architectural structures to determine how much needs to be 'stuck' together.
                The dome structure is an ideal form to allow these movements to take place and requires less bonding and bracing to hold the oven form together.

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