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-   -   Slip Joint or not? (http://www.fornobravo.com/forum/f28/slip-joint-not-15647.html)

bricks 04-04-2011 09:02 PM

Slip Joint or not?
 
1 Attachment(s)
Hi Out there,

I will be building an outer arch out of Bullnose bricks 9". I'm leaving the half bricks out to create a toothing which will be filled with 3" of blanket 1" of vermiculite/fondu then 3/4" of render 41/2" of the Facade bricks will overlap 41/2" of the firebrick inner arch should this overlap be a slip joint would appreciate any thoughts.Bricks

brickie in oz 04-04-2011 09:57 PM

Re: Slip Joint or not?
 
The outer arch looks from the pic like it will be in contact with the heat and flames? :confused:
If so it will crack with the heating and cooling cycle. :(

bricks 04-05-2011 12:03 AM

Re: Slip Joint or not?
 
:)Hi Bricky in Oz,
I'm thinking the same. Perhaps a 5mm gap between the to arches as both are selfsuporting.Or because its the furtherist from the fire a bed of fire clay or ramming puttey between the two could work.bricks

brickie in oz 04-05-2011 12:08 AM

Re: Slip Joint or not?
 
Quote:

Originally Posted by bricks (Post 110660)
a bed of fire clay or ramming puttey between the two could work.bricks

Or some ceramic rope?

david s 04-05-2011 03:53 AM

Re: Slip Joint or not?
 
About 6:1 vermicrete will work well too.

bricks 04-05-2011 04:43 PM

Re: Slip Joint or not?
 
Thanks for the info David S.Does this mix have normal cement or fondue. Bricks

bricks 04-05-2011 04:52 PM

Re: Slip Joint or not?
 
Hi Bricky in Oz,
Just thinking that if i cut a channel into the internal and external bricksto take the rope it would act as an anchor and a great seal still allowing say a3mm gap to difuse heat transfer to the facade. Bricks

david s 04-06-2011 12:52 AM

Re: Slip Joint or not?
 
Quote:

Originally Posted by bricks (Post 110700)
Thanks for the info David S.Does this mix have normal cement or fondue. Bricks

I just use Portland. It is in a slightly cooler area and seems to work ok. Fondue is a bit of an overkill IMO when used outside the main oven. It is also way more expensive.


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