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  1. #1
    Join Date
    Nov 2006
    Location
    NSW Australia
    Posts
    14

    Default A Brick of a problem

    Hi guys and gals, my questions are.... Is a solid brick the same as a fire brick?
    Can I use a solid brick to construct a woodfired pizza oven?
    Can normal mortar be used to bind the bricks?

    I know, these questions have probably been asked a thousand times but I'm at a loss due to conflicting information from both brick "profesionals"

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  3. #2
    Join Date
    Feb 2006
    Location
    Perth
    Posts
    27,757

    Default

    The answer to all your questions is "No"

    Using a normal solids and mortar will result in a very gritty pizza, some of the gritty pieces could be as large a brick

  4. #3
    Join Date
    Jul 2005
    Location
    Oberon, NSW
    Age
    63
    Posts
    13,354

    Default

    BobL is spot on.

    I have come across old bread & pizza ovens made from common red clay bricks... which were obviously well used way back when.

    But the reason I know of them is 'cos I was called in to pull them down as they'd 'burnt out' and were unsafe.

    'Nuff said?
    I may be weird, but I'm saving up to become eccentric.

    - Andy Mc

  5. #4
    Join Date
    Nov 2006
    Location
    NSW Australia
    Posts
    14

    Default

    Thanks guys, I'll use the proper fire bricks then.

    I was speaking with a rep from Austral bricks and she said that everyone was using solid bricks for these pizza ovens and that they sell heaps of them for this purpose.

    I got the same story from a fire brick salesperson. The difference was just over double the price.

    I'm very fussy with food so thanks again.

  6. #5
    Join Date
    Oct 2006
    Location
    Tallahassee FL USA
    Age
    82
    Posts
    4,650

    Default Refractory Mortar

    Be sure to use "refractory mortar" too. Brick supplier can supply or advise on recipe - sensitive to joint thickness.

    Cheers,
    Joe
    Of course truth is stranger than fiction.
    Fiction has to make sense. - Mark Twain

  7. #6
    Join Date
    Nov 2004
    Location
    Port Pirie SA
    Age
    52
    Posts
    6,908

    Default

    All the "fire bricks" at work(metal refinery) are of the solid variety but they aint no normal everyday brick, we use two types.
    For furnace burner chambers and low temp metal(up to 800°c)they use a white brick which are made with Moral clay, this is the type used for pizza ovens. The other type are used inside furnaces(1000°c+)so they are in direct contact with molten metal are a dark brown colour they are super heavy(about 7~8kg ea) and very brittle, god knows what they are made from as they laugh at a oxy flame... even a thermal lance has trouble cutting through them.

    Here is some info on fire bricks

    Look up Hanlon refractory supplies its where our masons get their gear.
    ....................................................................

  8. #7
    Join Date
    Feb 2006
    Location
    Perth
    Posts
    27,757

    Default

    Quote Originally Posted by Harry72 View Post
    For furnace burner chambers and low temp metal(up to 800°c)they use a white brick which are made with Moral clay, this is the type used for pizza ovens. The other type are used inside furnaces(1000°c+)so they are in direct contact with molten metal are a dark brown colour they are super heavy(about 7~8kg ea) and very brittle, god knows what they are made from as they laugh at a oxy flame... even a thermal lance has trouble cutting through them..
    Fire bricks have high temperature metal oxides added to them which is why they are heavy and why the laugh at Oxy's. Some natural clay's have these metal oxides already in them and bricks made from them fired to a higher temp can be used directly. There is one guy in Fremantle who sells pizza oven kits who was importing his fire bricks from Vietnam.

    In WA there is a type of white solid brick that was used extensively in housing in the 60's/70's that made from white sand high in silica that can can also be used for pizza ovens without problems. Just behind my shed I have a stack of these bricks that I am "gunna" one day maybe turn these into a Pizza Oven. Meanwhile these brick come in real handy when I want to create a temporary mini-furnace like arrangement. I lay down a layer of 6 on a piece of steel plate and then stack them on top of each other to create a little oven like structure about the size of one brick. I was going to make a larger gas powered furnace out of these bricks but the shed is too small and it looks like turning into another gunna project.

  9. #8
    Join Date
    Nov 2007
    Location
    belgrave
    Age
    61
    Posts
    7,934

    Default

    You can use normal brick where the fire isn't going to directly contact! Only really need fire bricks for the bit the fire is sitting on and maybe the base of the flue! Pizza ovens aren't really supposed to be going up high enough to waurant fire bricks, but they will have hot spots.

    Clay works in Dandenong in Melbourne has pizza ovens and stuff, as well as their pottery supplies.

    Welcome to Clayworks Wood Fired Pizza Ovens - Australia's premiere woodfired pizza ovens and kits
    anne-maria.
    T
    ea Lady

    (White with none)
    Follow my little workshop/gallery on facebook. things of clay and wood.

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