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Recipe for lightweight strong oven base??

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  • 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

  • #2
    Re: Recipe for lightweight strong oven base??

    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".
    Joe Watson, "A year from now, you will have wished that you had started today"
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    • #3
      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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      • #4
        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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