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Old 11-12-2013, 10:38 AM
Serf
 
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Location: topsfield, ma
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Question Recipe for lightweight strong oven base??

Looking for recipe and ratios to mix vermiculite and concrete for a strong yet lighter oven base for which to put base cooking level brick then build dome oven on top from there.

I've Heard it may be 5 to 1 ratio vermiculite to concrete
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Old 11-12-2013, 05:41 PM
Gulf's Avatar
Il Pizzaiolo
 
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Location: Mississippi
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Default Re: Recipe for lightweight strong oven base??

Quote:
Originally Posted by edjc View Post
Looking for recipe and ratios to mix vermiculite and concrete for a strong yet lighter oven base for which to put base cooking level brick then build dome oven on top from there.

I've Heard it may be 5 to 1 ratio vermiculite to concrete
You might want to clarify that question with a little more of an explaination of what you plan to build. 5 to 1 vcrete is recomended as an insulation layer for an oven floor. That is, if it is placed on top of a structural layer. It has plenty of "compressive strength", but no "tensil strength".
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Old 11-12-2013, 06:37 PM
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Default Re: Recipe for lightweight strong oven base??

Gulf has it right - you can't suspend a "vermicrete" floor on top of a U-shaped base.
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Old 11-12-2013, 07:27 PM
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Question Re: Recipe for lightweight strong oven base??

My vision is to Place the vermiculite and concrete Mix the base on this wooden structure. From this base I will layer of my firebrick base and then build up the firebrick dome
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