#1  
Old 03-25-2008, 03:06 AM
Serf
 
Join Date: Mar 2008
Location: Mannum, Sth Australia
Posts: 1
Default Purchase query

Where in South Australia can I purchase refractory cement or "fondu" as I bellieve it is/was called? I want to create a vermiculite/concrete slab for the base and cover my dome with vermiculite concrete. If I can't buy refractory cement can I use Portland cement with vermiculite (perlite) and if so, will it be prone to cracking?
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Old 03-25-2008, 06:48 AM
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Join Date: Jul 2005
Location: New Jersey USA
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Default Re: Purchase query

Welcome, Brian.

There is no need to use refractory cement for the vermiculite concrete. Portland will do just fine for this insulating layer. It doesn't get that hot. Where you need refractories is for the mortar between your firebricks, that are directly exposed to the heat of the oven. There are several different ways of doing that: keep reading.
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Old 03-25-2008, 05:30 PM
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Location: san angelo, texas
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Default Re: Purchase query

Quote:
Originally Posted by dmun View Post
There are several different ways of doing that: keep reading.
Good Answer!

And I have to agree.
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Old 03-25-2008, 06:37 PM
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Default Re: Refractory cement in vermiculite concrete

Hi all,

I moved this to Getting Started. Good answers.
James
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