#1  
Old 05-08-2008, 02:02 PM
Peasant
 
Join Date: Feb 2008
Location: greensboro nc
Posts: 40
Default Fireclay Mortar Formula

Your Portland cement fireclay Mortar formula has "1 part lime", is this the garden variety "lime" that I can buy at the local garden store? like Home Depot or Lowes.

Nobody knows what this stuff is? Everybody says that it is different stuff? who knows what they are talking about?
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  #2  
Old 05-08-2008, 02:28 PM
Ed_ Ed_ is offline
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Join Date: Apr 2008
Location: Iowa
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Default Re: Fireclay Mortar Formula

Garden lime and mason's lime are not the same thing. You want mason's lime, probably type S, although somebody more knowledgeable than I will have to chime in on that.
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  #3  
Old 05-08-2008, 02:39 PM
Peasant
 
Join Date: Feb 2008
Location: greensboro nc
Posts: 40
Default Re: Fireclay Mortar Formula

where can I purchase mason's lime in North Carolina?
Is it Green, is it made from limes? just kidding.
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Old 05-08-2008, 02:58 PM
dmun's Avatar
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Location: New Jersey USA
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Default Re: Fireclay Mortar Formula

A google maps search of greensboro turns up a half dozen masonry suppliers and brick yards in the area.

Guaranteed Supply Company - for the best in building materials!

Looks like a likely suspect from a casual glance.
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Old 05-08-2008, 03:09 PM
james's Avatar
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Location: Pebble Beach, CA
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Default Re: Fireclay Mortar Formula

Wow. There is so much out there to learn.

Mason's Lime | Type N Normal Hydrated Lime | Type S Special Hydrated Lime | Mason%27s Lime

You are looking for Type S mason's lime -- or the basic mason's lime your supply company carries. The bags I have used said Type S.

James
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Old 05-08-2008, 03:33 PM
Apprentice
 
Join Date: Jul 2007
Location: Ohio
Posts: 101
Default Re: Fireclay Mortar Formula

Some cement companies use hydrated & double hydrated lime as an additive when they are milling masonry cement so the lime is an integral part of the cement. There is also a product called Portland Cement and Lime (PCL) which is T-I cement and Lime milled together. The company I work for manufactures both and when I built my oven I tested both products and found the regular Type-N masonry cement to be more workable. You "might" find these products at Home Depot or Lowes and you will definitely find them at local brick and block supply stores... 2 of the 7 within 20 miles of me even carried the fireclay and firebrick.
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Old 05-08-2008, 04:07 PM
Dutchoven's Avatar
Master Builder
 
Join Date: Apr 2007
Location: Mississippi
Posts: 931
Default Re: Fireclay Mortar Formula

Living here in Mississippi I have found the best supplier to be your local brick yard. Here we have Old South brick and they have had anything I needed, firebrick, fireclay, type N mortar(equal parts portland cement and lime), hydrated lime(which is what many call mason's lime). I think you will have the best luck there.
Best
Dutch
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