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expanded clay - 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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expanded clay

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  • expanded clay

    I've been experimenting a little with expanded clay as an insulating aggregate. The stuff is much denser than perlite or vermiculite, but is also way stronger. I have been using it where I want an insulator, but also need strength in that area. It has replaced a 50/50 mix of heavy aggregate and perlite. Because of the way the stuff is manufactured it is really strong. each grain is around 10 mm in diameter and are spherical in form. The outside is quite hard but the inside is full of holes and much softer.This is ideal because it gives them more strength while remaining pretty light. They cost me around double that of perlite, but I think I'll continue to use them. Anyone else had experience with using them or know of any building applications? They are generally used as a water filtration or water storage as a growing medium.
    Last edited by david s; 07-08-2013, 02:00 PM.
    Kindled with zeal and fired with passion.

  • #2
    Re: expanded clay

    Expanded shale is used in CMU over here as well as in lightweight concrete. The only issue I have had with it is that it causes a flash set when used as an aggregate, but that is solved by mixing method.

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    • #3
      Re: expanded clay

      At least one Neapolitan builder uses them to insulate. I have no first hand experience, but have heard the insulation value of the resulting product is poor to non existent.

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      • #4
        Re: expanded clay

        Originally posted by shuboyje View Post
        At least one Neapolitan builder uses them to insulate. I have no first hand experience, but have heard the insulation value of the resulting product is poor to non existent.
        Because each grain contains lots of air I would expect it to be quite a good insulator, but do not expect it to be as good as vermicrete because it is a denser material. I might make some samples and do some tests.
        Kindled with zeal and fired with passion.

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        • #5
          Re: expanded clay

          Originally posted by Tscarborough View Post
          Expanded shale is used in CMU over here as well as in lightweight concrete. The only issue I have had with it is that it causes a flash set when used as an aggregate, but that is solved by mixing method.
          Thanks. Expanded clay is different to expanded shale. I haven't noticed it affecting setting, but the grains have a tendency to float presumably because water does not penetrate the outer shell too easily. I intend to try soaking them a bit first next time.
          Kindled with zeal and fired with passion.

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          • #6
            Re: expanded clay

            I don't think there is much if any difference. Clays are mostly shales, and the process is the same to produce them. In CMU the pellets are ground into a designed ratio of aggregate sizes, the aggregates used for lightweight concrete are also sized for the use. I have played with both. They flash set simply because they are so porous and extremely dry at the end of the production process. Obviously the finer they are ground the less this is an issue.

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            • #7
              Re: expanded clay

              This may be of some use to folk following this thread, although I'm sure their claim of 11000 C must be wrong.(1100 surely)

              Leca: The best light weight Aggregate for Thermal Insulated Concrete
              Kindled with zeal and fired with passion.

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