#11  
Old 01-26-2010, 02:18 PM
Serf
 
Join Date: Jan 2010
Location: Egypt
Posts: 9
Default Re: my slabe is worm !!!

Quote:
Originally Posted by Neil2 View Post
Your slab is OK to about 500 F.
thanks a lot that was my concern
Reply With Quote
  #12  
Old 01-26-2010, 02:39 PM
Serf
 
Join Date: Jan 2010
Location: Egypt
Posts: 9
Default Re: my slabe is worm !!!

Quote:
Originally Posted by nissanneill View Post
Ammora
I think that you are going to experience some serious problems with your build. To start with, clay is used as a heat sink, ie. thermal mass and not as an insulator! You need something that is going to stop the heat from draining out of your oven and in this case your floor.
My other concern is you use of marble. I would be hesitant in using such materials a s it is likely to break up with high heat, spalling and small sometimes sharp pieces explode off the surface. Just watch out, especially if you drop some cold ingredients or water when you spray for steam when bread baking that the cold water doesn't cause the problem!
Let's see if anyone else has similar feelings and opinions, as I hate being the provider of bad news!

Neill
so far the marble is doing great (it is a black one by the way)
and for the clay YES U R right
but i forgot to mention that under this 4" of clay lays a layer of punctured red
brick (as in the attached photo) the holes (air) in the bricks serves as the insulator
sorry every body for missing to say so
Attached Thumbnails
my slabe is worm !!!-bricks.jpg  
Reply With Quote
  #13  
Old 01-26-2010, 02:53 PM
Serf
 
Join Date: Jan 2010
Location: Egypt
Posts: 9
Default Re: my slabe is worm !!!

Quote:
Originally Posted by dmun View Post
The one time I was in Egypt, it didn't exactly look forested. I would suspect that firewood is expensive there, and I would think that proper refractory insulation, above and below your oven, would be money well spent.

It bears repeating: Sand is not an insulator. Gravel is not an insulator. Broken glass is not an insulator. And, No, clay isn't an insulator either.
I agree Egypt is not forested but the fire wood is available and it is not expensive (some times i get it for free!!)
and U R right about the insulation stuff
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -7. The time now is 12:43 AM.

Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
2006/10 Forno Bravo, LLC