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danqui 05-02-2009 01:21 PM

perlite / vermiculite
so i didnt find out yet how i will mix one of them with the concrete for my oven floor, what mixture of concrete should i use and how much of the perlite/ vermiculite
do i use common cement???

how about the mortar for the dome...

Neil2 05-02-2009 04:16 PM

Re: perlite / vermiculite
Don't use this for your oven floor. This is the insulation layer and goes between the structural slab and the oven hearth bricks.

I used an 8:1 mix. 8 Vermiculite to 1 normal Portland cement.

danqui 05-05-2009 07:24 AM

Re: perlite / vermiculite
so how much vermiculita will i need, they sell here ten kilo so is that enogh?

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