#1  
Old 03-06-2014, 03:57 AM
Serf
 
Join Date: Dec 2013
Location: hobart, australia
Posts: 5
Default Curved fire bricks

Has anyone on here made a dome oven from curved fire brick? I have used the search but could not find anything.
I have just bought a kit and will post up some photos when I get a chance.

Cheers James
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  #2  
Old 03-06-2014, 02:25 PM
Apprentice
 
Join Date: Jun 2013
Location: Queensland Australia
Posts: 105
Default Re: Curved fire bricks

What do you mean by "curved fire brick"? Do you mean tapered if so I used tapered fire bricks with the diameter of the oven determined by the taper. As the angle of taper is constant in a true circular arch by dry setting the tapered bricks with a spacer can determine the diameter and height
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Old 03-06-2014, 05:26 PM
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Join Date: Dec 2013
Location: hobart, australia
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Default Re: Curved fire bricks

Thanks for replying toomulla. The bricks have actually been made in a curved shape to allow them to make the shape of the Oven circumference. I am ok with that but a little unsure on either tapering the top an bottom to get the dome shape or use the full bricks and fill the gap left with mortar.
Cheers James
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Old 03-06-2014, 07:18 PM
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Join Date: Jun 2013
Location: Queensland Australia
Posts: 105
Default Re: Curved fire bricks

I would have some caution with a product such as you describe They would work for a barrel vault but I do not see how they wil work for a dome, as the circles get smaller and more tilted as they rise. You could possibly use the circle shape vertically cutting them in half and tapering the sides.

David S or Cobblerdave may be able to be able to enlighten us all
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Old 03-06-2014, 10:36 PM
Journeyman
 
Join Date: Jun 2008
Location: Melbourne Australia
Posts: 399
Default Re: Curved fire bricks

Darley firebricks in Bacchus Marsh used to make several different diam. "circle" bricks for Cupola linings years ago before they went broke.
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Old 03-07-2014, 02:33 AM
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Location: brisbane australia
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Default Re: Curved fire bricks

G'day
Thanks for the reply Johnny .....out of my pay grade. Did find this

Curved fire bricks-image.jpg

Curved fire brick?

Regards dave
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Old 03-07-2014, 03:08 AM
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Location: Australia
Posts: 1,053
Default Re: Curved fire bricks

Curious. Interesting shape brick. Thought it hard enough with my build but curved bricks, that is mind boggling. Nah to hard don't want to think about it.
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Old 03-07-2014, 03:44 AM
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Default Re: Curved fire bricks

Quote:
Originally Posted by oasiscdm View Post
Curious. Interesting shape brick. Thought it hard enough with my build but curved bricks, that is mind boggling. Nah to hard don't want to think about it.
G'day Colin
Thanks ..... Thanks very bloody much ... Now I'm doing the mental gymnastics on how the thing would fit together. If I disregard the side cuts and work on one plane just the bottom cuts. At first its easy just cut one surface on an angle,the cuts is straight so it will sit straight on the flat surface below. Now bring brick bond into the equation and overlap the bricks. Now I'm not really sure.
I'm at the point where tomorrow I will make some mini curved firebrick shapes out of EVA stiff foam on the boot sander and see what he shapes turn out like when put together......

Regards dave
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Old 03-07-2014, 11:09 AM
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Location: Michigan
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Default Re: Curved fire bricks

In my estimation it would not be so different than using rectangular bricks but maybe a wee bit trickier. The photograph Dave provided seems to have a pretty tight radius too tight to form the shape of the dome anyway. Im guessing tracytraceys bricks are a little different.

I would imagine the final result would look alot like the inside of our regular firebrick domes except the bricks would have scalloped faces instead of flat faces and it would probably be more difficult to get the horizontal edges to remain flush (or nearly flush) with the courses above and below so there would be more irregularity in the surface. Done well, it might look pretty cool and I'm sure it would work fine - but don't they all?
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Old 03-07-2014, 11:30 AM
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Default Re: Curved fire bricks

That's a brick for the last few courses before topping out.
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