[TheForge] High temperature cement?

[Peter Fels & Phoebe Palmer]

Portland cement breaks down at a fairly low temp..in forge terms.
Fireclay is better but melts when it gets wet...but it doesn't take much 
cement to keep it together.
Some subsurface bailing wire reinforcing will help too.
The vermiculite is to make air spaces for weight and insulation.
Commercial refractories are the lasting solution..a local pottery supply 
can help you too.
When you get right down to it, riverbank clay with sand ,is traditional.
Dirt works.
................pf

Jeff wrote:
> I haven't done it yet to many other projects, but to line my 
> coal/charcoal burner I have 1 part portland cement, 2 parts fire clay 
> and 2 parts vermiculite.  I was told to mix as dry as possible and pack 
> it in place and let it dry slowly a week or two before the first fire to 
> avoid cracks.  I was told this would last even considering in my case 
> the fire pot will be constructed out of the cement/forge liner.  I think 
> there is a similar recipe on Anvil Fire.
> 
> Jeff
> /frequent lurker, rare contributor
> /
> Daniel Kretchmar wrote:
>> Greetings,
>>         Some time ago someone on this list posted a recipe for high
>> temperature concrete to line my coal forge with.  I have long since
>> lost the recipe.  Could someone repost it?
>>
>> I found one online for an oven, but I am not sure this will work.  
>> Suggestions?
>>
>> http://www.traditionaloven.com/tutorials/concrete.html
>>
>> Daniel Kretchmar
>> www.irontreeworks.com
>> _______________________________________________
>> Manage membership or unsubscribe at:
>> http://mailman.qth.net/mailman/listinfo/theforge
>> theforge mail list group photo site is
>> http://www.photoaccess.com
>> Login:  blacksmithblacksmith at hotmail.com
>> password:  anvil
>> ___________
>>
>>
>>
>>   
> _______________________________________________
> Manage membership or unsubscribe at:
> http://mailman.qth.net/mailman/listinfo/theforge
> theforge mail list group photo site is
> http://www.photoaccess.com
> Login:  blacksmithblacksmith at hotmail.com
> password:  anvil
> ___________
> 
> 
>