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wemme 12-19-2009 07:25 PM

Hello From NZ. A Few questions RE Castable
Hello, Just looking for some words of wisdom from the more practiced in pizza oven building.

I want to build a 36" High Vault Oven in the garden. unfortunately fire bricks are ridiculously expensive here where castables are mostly reasonable.

I plan to using Castable for the Themal mass is 50mm (2") enough???
I only want to do a few pizzas a loaf of bread or two or a roast or so.
I don't plan on being the local baker!

for the insulation Layers I want to use a Perlite and portland cement mix.
I plan on 100mm (4") for the base and then 200mm (8") for the walls is this too much or about right???

I have seen mention not to use a concrete mixer for vimiculite cement mix but with no reason i assume this is so the vimiculite doesn't break up ??

I am looking at a 100mm concrete foundation slab with 12mm(1/2") rebarb and reinforcing mesh for reinforcing. I assume this would be adequate?

And if any Other Kiwis around here feel free to say hi and share notes.

Thanks for any answers they will be much appreciated.


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