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slab without angle iron? - Forno Bravo Forum: The Wood-Fired Oven Community

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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.
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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.

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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slab without angle iron?

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  • slab without angle iron?

    Still building my block foundation from 40 inches below grade but started to think about the slab of hearth concrete. I did a corner installion and rather than have some custome angle iron fabricated to support block, I was wondering if I could just span the opening (36 inches) without. I would think the slab would be strong enough. I looks like others did this as well but wanted to get some opinions

    TIA

  • #2
    Re: slab without angle iron?

    Make sure you have enough rebar and you should not have any problem with this type of span. I would make sure that slab is at least 5 inches thick across the opening. In addition to your current re bar schedule, I would add two additional 3/8 or 1/2 " rebar spanning the opening.

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    • #3
      Re: slab without angle iron?

      Hi Neil, there is 2 ways to do the span without angle you can either form over opening with concrete or if you want block as in looks and something to tie into then use knockout blocks with 2 reo bars extending to at least 200mm past opening with with timber underneath to hold blockwork till your concrete is cured.
      Hope this helps

      Steve

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      • #4
        Re: slab without angle iron?

        Here's what I did. No rebar, no angle iron. Just blocks and 2" paving slabs. 6" of vermiculite cement went on top and then the hearth. The oven is now completed and I don't have any problems.

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        • #5
          Re: slab without angle iron?

          I used 1 1/2" X 20 ga. Galv Deck which will hold up the concrete pour. You can find item at any steel construction supply.

          You can see what it looks like on my build #3

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          • #6
            Re: slab without angle iron?

            Nice job Nev.

            Simple but elegant solution.

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