Recipe for lightweight strong oven base??

[edjc]

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

[boerwarrior]

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.

[Gulf]

Re: 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

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".

[edjc]

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