#1  
Old 09-28-2012, 12:33 PM
Peasant
 
Join Date: Sep 2011
Location: iowa
Posts: 29
Question Door advice: exposed perlcrete ok?

I just poured a door, the front is Ipe, the back 2.5" is 8:1 perlcrete.

Any reason I can't just leave the perlcrete exposed? I had not planned on encasing it. Will it eventually just crumble to nothing?
Reply With Quote
  #2  
Old 09-28-2012, 12:47 PM
david s's Avatar
Il Pizzaiolo
 
Join Date: Mar 2007
Location: Townsville, Nth Queensland,Australia
Posts: 4,716
Default Re: Door advice: exposed perlcrete ok?

Quote:
Originally Posted by Abouna View Post
I just poured a door, the front is Ipe, the back 2.5" is 8:1 perlcrete.

Any reason I can't just leave the perlcrete exposed? I had not planned on encasing it. Will it eventually just crumble to nothing?
Yes it will, or at least mine did. Generally the better the insulating material is the weaker its strength.
Reply With Quote
  #3  
Old 09-28-2012, 03:30 PM
Peasant
 
Join Date: Sep 2011
Location: iowa
Posts: 29
Default Re: Door advice: exposed perlcrete ok?

Well. OK then!

- I assume it's safe however to use exposed if I decide to use it as is?
- Any ideas short of some kind of metal shielding to prolong it?
Reply With Quote
  #4  
Old 09-28-2012, 06:54 PM
david s's Avatar
Il Pizzaiolo
 
Join Date: Mar 2007
Location: Townsville, Nth Queensland,Australia
Posts: 4,716
Default Re: Door advice: exposed perlcrete ok?

See how it works and try as much as possible not to use it above baking or roasting temperatures. Portland cement does not like high heat. When it finally cracks or abrades to bits you could try using calcium aluminate cement, which can handle the heat, but when it is mixed with perlite you end up compromising the strength of the stuff. To make it stronger you can try making up the panel then taking it to a local potter and have them fire it for you. But only take it to 1000 C because the perlite fails at 1100 C.
It is probably easier to encase the whole thing in metal.
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Mortar all cracks or go with Perlcrete? charger10s Pompeii Oven Construction 6 05-23-2011 03:20 PM
Extending front entrance with perlcrete Rocko Bonaparte Other Oven Types 7 04-07-2011 07:41 PM
Setting a perlcrete pad despite the cold Rocko Bonaparte Other Oven Types 9 02-18-2011 05:00 PM
cooking floor layout on perlcrete questions George T Pompeii Oven Construction 8 06-17-2008 09:11 PM
Perlcrete over foil dome insulation finished Marcel Brick Oven Photos 1 06-27-2006 08:14 PM


All times are GMT -7. The time now is 05:45 PM.

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