Paul on wed 15 may 02
Hello,
i have a growing collection of broken IFB's from an old kiln and was
wondering if anyone has been able to make use of this type of thing. the
thought that comes to mind is mixing it with greenpatch 421 or mortar to
fill in cracks, and i am interested to hear if anyone has had good results
doing this or some other method, rather than throwing them away. thanks
Paul
vince pitelka on thu 16 may 02
> i have a growing collection of broken IFB's from an old kiln and was
> wondering if anyone has been able to make use of this type of thing. the
> thought that comes to mind is mixing it with greenpatch 421 or mortar to
> fill in cracks, and i am interested to hear if anyone has had good results
> doing this or some other method, rather than throwing them away. thanks
Paul -
You have hit upon one of the good uses for IFB scraps. Mix with Greenpatch
421 for an excellent repair compound for filling gaps in refractory repair.
With this mixture you can reconstruct missing sections that support
elements, etc. Just use cardboard, duct tape, or whatever to provide a bit
of a "form" to help support the repair compound while it sets. Be sure to
soak the adjacent bricks with water, because air-set cements like Greenpatch
need to cure before the moisture is drawn off. It's just like concrete in
that regard.
You can crush softbrick to make coarse grog, and just keep it around to use
in patching mediums or mortars for general use in kiln construction and
repair. Also, you can saw softbrick into thin (1/4 to 1/2") shims, break
into 1" pieces, and use them to support large flat pieces in the bisque
firing to allow air/heat circulation beneath the piece.
Good luck -
- Vince
Vince Pitelka
Appalachian Center for Crafts
Tennessee Technological University
1560 Craft Center Drive, Smithville TN 37166
Home - vpitelka@dtccom.net
615/597-5376
Work - wpitelka@tntech.edu
615/597-6801 ext. 111, fax 615/597-6803
http://www.craftcenter.tntech.edu/
Brooks Ratledge on thu 16 may 02
IFB scraps can be carved to use for stamps. I know a couple of people who
till them into their gardens. They hold moisture for the plants.
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-----Original Message-----
From: Paul
To: CLAYART@LSV.CERAMICS.ORG
Date: Thursday, May 16, 2002 1:28 AM
Subject: IFB SCRAPS
>Hello,
>i have a growing collection of broken IFB's from an old kiln and was
>wondering if anyone has been able to make use of this type of thing. the
>thought that comes to mind is mixing it with greenpatch 421 or mortar to
>fill in cracks, and i am interested to hear if anyone has had good results
>doing this or some other method, rather than throwing them away. thanks
>Paul
>
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Ron Roy on mon 20 may 02
Hey Paul,
Couple of things to be aware of.
Used fire bricks - are usually full of cristobalite - multiple firing at
our temperatures are a very good way to build up heavy concentrations of
it. Cristobalite is a silica crystal and is even more dangerous to breath
than quartz - so - when crushing and working with this stuff - protect your
lungs.
Some fire brick can be contaminated with toxic material - lead for
instance. Even something like salted grog would probably not be the best
thing to put in your garden.
If you know the history of your brick then it should be easy to make the
right decision.
RR
>> i have a growing collection of broken IFB's from an old kiln and was
>> wondering if anyone has been able to make use of this type of thing. the
>> thought that comes to mind is mixing it with greenpatch 421 or mortar to
>> fill in cracks, and i am interested to hear if anyone has had good
results
>> doing this or some other method, rather than throwing them away. thanks
>
>Paul -
Ron Roy
RR #4
15084 Little Lake Road
Brighton
Ontario
Canada - K0K 1H0
Phone: 613-475-9544
Fax: 613-475-3513
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