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Old 08-28-2011, 05:18 PM
Peasant
 
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Default poured castable refractory oven floor?

Anyone ever pour oven floor with Heatcast 40? search "Heatstop" - Product says its good up to 2000 degrees. It would give you a perfectly smooth oven floor and save a lot of time cutting and placing all those floor bricks.HEAT CAST-40 is a medium weight refractory castable product. It is also sometimes used in place of firebrick or it may be cast into special shapes for woodstoves, fireplace hearths, walls, boilers, furnaces, and other high temperature applications???? Any thoughts
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Old 08-28-2011, 06:30 PM
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Default Re: poured castable refractory oven floor?

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Originally Posted by larrycooper View Post
Anyone ever pour oven floor with Heatcast 40? search "Heatstop" - Product says its good up to 2000 degrees. It would give you a perfectly smooth oven floor and save a lot of time cutting and placing all those floor bricks.HEAT CAST-40 is a medium weight refractory castable product. It is also sometimes used in place of firebrick or it may be cast into special shapes for woodstoves, fireplace hearths, walls, boilers, furnaces, and other high temperature applications???? Any thoughts
Pouring a slab that large would develop cracks, others Have made a round center casting and 4-6 pie slices around the center circle.

Chip
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Old 08-29-2011, 02:08 AM
Peasant
 
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Default Re: poured castable refractory oven floor?

so you would place a grid system into it - any reinforcmennt?? Any forseeable problems? Do they retain heat as much/ or better than firebrick. This could really save a lot of time
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Old 08-29-2011, 03:45 AM
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Default Re: poured castable refractory oven floor?

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Originally Posted by larrycooper View Post
so you would place a grid system into it - any reinforcmennt?? Any forseeable problems? Do they retain heat as much/ or better than firebrick. This could really save a lot of time
By the time you make all of your forms I think it will take quite a bit longer. The main reason for doing cartable is the fewer number of seams. It does not take long to cut the bricks, I did it in less than 2 hours. Because most of the cuts are outside cuts they go quickly.

Chip
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Old 08-29-2011, 01:30 PM
Apprentice
 
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Default Re: poured castable refractory oven floor?

I cast my oven floor myself and segmented it for ease of lifting and moving the oven. To be honest I would prefer using bricks made from natural products especially as food is going to be prepared on it. See it here http://www.fornobravo.com/forum/21/m...y-16182-2.html (My latest precast oven, struck today)
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Old 08-29-2011, 11:23 PM
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Default Re: poured castable refractory oven floor?

The materials in castable refractory are essentially the same as a firebrick and there is little difference between them in density and abrasion resistance. I don't think you have a problem.
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Old 08-30-2011, 12:52 PM
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Default Re: poured castable refractory oven floor?

The company i deal with here in the UK sell refractory castable however I believe the bricks are natural kaolinic clay similar to the clay used by the fantastic French ovens Le Panyol. Hence the colour difference of bagged castable and the white bricks
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