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Old 06-02-2009, 09:32 AM
Peasant
 
Join Date: Mar 2009
Location: Colorado
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Default Refractory Bricks

I am ready to start the dome construction, but I am feeling a little uneasy about my refractory bricks. I bought them many years ago from a demolition of a glass blowing kiln. I have no idea how to determine if they are appropriate for an oven. They were manufactured Royal Gorge--I can't find any info about the company. Due to budget constraints I am hoping they are OK. Any thoughts? Also, what is the estimated amount of bricks for a tuscan style 36" oven?

Marty
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  #2  
Old 06-02-2009, 10:15 AM
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Default Re: Refractory Bricks

Hi Marty,

How much do they weigh and how large are they. A typical medium duty firebrick weighs about 8 lbs, so if your weight and size are consistent, you probably have the right density.

I think it would be hard to tell the duty rating on the bricks -- which depends on the composition, but really, you will be fine regardless. Medium duty is optimal, but even high duty bricks are OK. They get really hot and cool down a little faster, but your oven would still be fine.

You need about 180 bricks for the floor, dome and vent.
Enjoy!
James
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Old 06-02-2009, 11:10 AM
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Default Re: Refractory Bricks

Would there be a concern if they were used in a glass kiln? I don't know if brick can absorb the lead or not. Just a thought.

Les....
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Old 06-02-2009, 04:38 PM
Peasant
 
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Default Re: Refractory Bricks

I hadn't thought about the lead. I should probably look into that. The bricks are standard size 9 x 4.5 x 2.5 and weigh 7.5 lbs.
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Old 06-02-2009, 04:57 PM
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Default Re: Refractory Bricks

I will think about who to ask about glass and lead and get back to you. Otherwise, your bricks are looking good.
James
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Old 06-03-2009, 07:15 PM
Peasant
 
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Location: Colorado
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Default Re: Refractory Bricks

I sent for a lead test kit from Lead Check. LeadCheck Swabs Industrial. I contacted several testing labs and they all expressed concern because lead becomes volatile at the oven temperatures. They also thought I should test the clay I will be using for mortar. Hopefully the tests will be negative and I can get on with this project.
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