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-   -   Recipe for lightweight strong oven base?? (http://www.fornobravo.com/forum/f48/recipe-lightweight-strong-oven-base-20122.html)

edjc 11-12-2013 10:38 AM

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

Gulf 11-12-2013 05:41 PM

Re: Recipe for lightweight strong oven base??
 
Quote:

Originally Posted by edjc (Post 165367)
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".

boerwarrior 11-12-2013 06:37 PM

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.

edjc 11-12-2013 07:27 PM

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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