jonathan byler on wed 13 jun 12
Can anyone point me to a good resource on this? I am curious how one
designs in expansion joints in a kiln floor. walls are pretty
straightforward it seems. found all I needed to know on that in a few
books I had been reading. but nothing about how one should leave
expansion joints in a hardbrick floor. for what it's worth, this kiln
has a hardbrick interior with soft brick exterior.
thanks,
jon
jonathan byler on thu 14 jun 12
do you put expansion joints in the walls? or just a massive frame for
that too? it is surprising how much the hard bricks want to move as
they heat up. if they can't go out, I imagine they will just want to
buckle inward, also not good.
On Jun 14, 2012, at 2:18 PM, Steve Mills wrote:
> Jonathan,
>
> Personally I wouldn't bother, for the same reason that I see no
> point in putting heavy duty springs into a Kiln frame.
> The whole thing will expand and then contract as a unit, and thus
> maintain its shape and structure.
> Temporary and/or unsupported Kilns sans frame finish the firing
> looking and behaving like a brick colander.
> Build her tight and well braced and she'll stay in one piece.
> The only thing I MIGHT do (but haven't as yet) would be to build
> the whole thing on a single layer of fibre to further assist its
> movement as one unit!
>
> Steve M
>
>
> Steve Mills
> Bath
> UK
> www.mudslinger.me.uk
> Sent from my iPod
>
>
> On 13 Jun 2012, at 20:48, jonathan byler wrote:
>
>> Can anyone point me to a good resource on this? I am curious how one
>> designs in expansion joints in a kiln floor. walls are pretty
>> straightforward it seems. found all I needed to know on that in a
>> few
>> books I had been reading. but nothing about how one should leave
>> expansion joints in a hardbrick floor. for what it's worth, this
>> kiln
>> has a hardbrick interior with soft brick exterior.
>>
>> thanks,
>> jon
Steve Mills on thu 14 jun 12
Jonathan,=3D20
Personally I wouldn't bother, for the same reason that I see no point in pu=
t=3D
ting heavy duty springs into a Kiln frame.=3D20
The whole thing will expand and then contract as a unit, and thus maintain =
i=3D
ts shape and structure.=3D20
Temporary and/or unsupported Kilns sans frame finish the firing looking and=
b=3D
ehaving like a brick colander.=3D20
Build her tight and well braced and she'll stay in one piece.=3D20
The only thing I MIGHT do (but haven't as yet) would be to build the whole=
t=3D
hing on a single layer of fibre to further assist its movement as one unit!
Steve M
Steve Mills
Bath
UK
www.mudslinger.me.uk
Sent from my iPod
On 13 Jun 2012, at 20:48, jonathan byler wrote:
> Can anyone point me to a good resource on this? I am curious how one
> designs in expansion joints in a kiln floor. walls are pretty
> straightforward it seems. found all I needed to know on that in a few
> books I had been reading. but nothing about how one should leave
> expansion joints in a hardbrick floor. for what it's worth, this kiln
> has a hardbrick interior with soft brick exterior.
>=3D20
> thanks,
> jon
Steve Mills on fri 15 jun 12
I have never yet seen a kiln buckle inwards because of its frame. Remember,=
s=3D
teel expands with heat as well, so, as I've said before, the whole thing "m=
o=3D
ves" as a unit as it heats up and cools down. =3D20
Put an expansion joint in anywhere and the kiln will expand into it and NOT=
r=3D
etreat and you'll likely have one or several gaps created by that, probably=
i=3D
n places you don't want them!
Expansion joints are found in places like Railway Tracks where movement wou=
l=3D
d cause buckling and consequent de-railment, NOT in kilns.=3D20
Look in Mel's book "21st Century Kilns", you won't find them there, you'll =
f=3D
ind solidly built kilns with strong steel frames that last for years and ar=
e=3D
fired hundreds of times.=3D20
These guys know what they're doing.=3D20
Build her solid and strong to a good design and enjoy the results for years=
t=3D
o come.=3D20
Steve M
Steve Mills
Bath
UK
www.mudslinger.me.uk
Sent from my iPod
On 15 Jun 2012, at 00:12, jonathan byler wrote:
> do you put expansion joints in the walls? or just a massive frame for tha=
t=3D
too? it is surprising how much the hard bricks want to move as they heat =
u=3D
p. if they can't go out, I imagine they will just want to buckle inward, a=
l=3D
so not good.
>=3D20
> On Jun 14, 2012, at 2:18 PM, Steve Mills wrote:
>=3D20
>> Jonathan,
>>=3D20
>> Personally I wouldn't bother, for the same reason that I see no point in=
p=3D
utting heavy duty springs into a Kiln frame.
>> The whole thing will expand and then contract as a unit, and thus mainta=
i=3D
n its shape and structure.
>> Temporary and/or unsupported Kilns sans frame finish the firing looking =
a=3D
nd behaving like a brick colander.
>> Build her tight and well braced and she'll stay in one piece.
>> The only thing I MIGHT do (but haven't as yet) would be to build the wh=
o=3D
le thing on a single layer of fibre to further assist its movement as one u=
n=3D
it!
>>=3D20
>> Steve M
>>=3D20
>>=3D20
>> Steve Mills
>> Bath
>> UK
>> www.mudslinger.me.uk
>> Sent from my iPod
>>=3D20
>>=3D20
>> On 13 Jun 2012, at 20:48, jonathan byler wrote:
>>=3D20
>>> Can anyone point me to a good resource on this? I am curious how one
>>> designs in expansion joints in a kiln floor. walls are pretty
>>> straightforward it seems. found all I needed to know on that in a few
>>> books I had been reading. but nothing about how one should leave
>>> expansion joints in a hardbrick floor. for what it's worth, this kiln
>>> has a hardbrick interior with soft brick exterior.
>>>=3D20
>>> thanks,
>>> jon
>=3D20
Edouard Bastarache on fri 15 jun 12
Jon,
no expansion joints in the floor of my kiln.
Firings made the necessary expansion joints,
cracks that is. I showed my floor the a forge
foreman, he told me not to fill the cracks
because expansion of the bricks during firing
will make cracks wider. During firing the cracks
are closed by heat.
Plejkore,
Edouard Bastarache
Spertesperantisto
Sorel-Tracy
Quebec
http://www.flickr.com/photos/30058682@N00/
http://edouardbastarache.blogspot.com/
http://smart2000.pagesperso-orange.fr/bloggs_edouard.htm
http://www.facebook.com/edouard.bastarache
----- Original Message -----
From: "jonathan byler"
To:
Sent: Friday, June 15, 2012 4:48 PM
Subject: Re: expansion joints in hardbrick
> was planning on it, and have looked at the stuff in his book, but
> olsen doesn't say anything about floors. Hardbrick interior,
> softbrick exterior. any thoughts on floor expansion joints?
>
> On Jun 15, 2012, at 2:26 PM, John Britt wrote:
>
>> I would definitely put expansion joints in hard brick kilns! Ask
>> Shane
>> Mickey or some other kiln builder what they do. mickey.dan@excite.com
>>
>> If you use the index in "The Kiln Book" by Olsen you will see on
>> page 25 a
>> section on expansion joints.
>>
>> I don't use them on IFB kilns.
>>
>> But you do what you want.
>>
>> John Britt Pottery
>>
>
John Britt on fri 15 jun 12
I would definitely put expansion joints in hard brick kilns! Ask Shane=3D2=
0=3D
Mickey or some other kiln builder what they do. mickey.dan@excite.com
If you use the index in "The Kiln Book" by Olsen you will see on page 25 =
=3D
a=3D20
section on expansion joints.
I don't use them on IFB kilns.
But you do what you want.
John Britt Pottery
John Britt on fri 15 jun 12
It was my recollection that they put them under the wall but doesn't mel et
al have a book on the subject?
John Britt Pottery
On Fri, Jun 15, 2012 at 4:48 PM, jonathan byler wrote:
> was planning on it, and have looked at the stuff in his book, but olsen
> doesn't say anything about floors. Hardbrick interior, softbrick exterio=
r.
> any thoughts on floor expansion joints?
>
> On Jun 15, 2012, at 2:26 PM, John Britt wrote:
>
> I would definitely put expansion joints in hard brick kilns! Ask Shane
>> Mickey or some other kiln builder what they do. mickey.dan@excite.com
>>
>> If you use the index in "The Kiln Book" by Olsen you will see on page 25=
a
>> section on expansion joints.
>>
>> I don't use them on IFB kilns.
>>
>> But you do what you want.
>>
>> John Britt Pottery
>>
>>
>
--
Regards,
John
AWESOME VIDEOS: http://www.youtube.com/user/johnbrittpottery
AWESOME BLOG: http://ncclayclub.blogspot.com
WEBPAGE: www.johnbrittpottery.com
jonathan byler on fri 15 jun 12
was planning on it, and have looked at the stuff in his book, but
olsen doesn't say anything about floors. Hardbrick interior,
softbrick exterior. any thoughts on floor expansion joints?
On Jun 15, 2012, at 2:26 PM, John Britt wrote:
> I would definitely put expansion joints in hard brick kilns! Ask
> Shane
> Mickey or some other kiln builder what they do. mickey.dan@excite.com
>
> If you use the index in "The Kiln Book" by Olsen you will see on
> page 25 a
> section on expansion joints.
>
> I don't use them on IFB kilns.
>
> But you do what you want.
>
> John Britt Pottery
>
Nefsigh@AOL.COM on fri 15 jun 12
Heck-hard brick kilns are so loose anyway-they have lots of room to expand.
I have built kilns all over the world and until this question, never, ever
thought about an expansion joint. Oh well
Cheers to all, think simple, think less and just do--
Lenny Dowhie
In a message dated 6/15/2012 2:31:45 P.M. Central Daylight Time,
johnbrittpottery@GMAIL.COM writes:
I would definitely put expansion joints in hard brick kilns! Ask Shane
Mickey or some other kiln builder what they do. mickey.dan@excite.com
If you use the index in "The Kiln Book" by Olsen you will see on page 25 a
section on expansion joints.
I don't use them on IFB kilns.
But you do what you want.
John Britt Pottery
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