Mag727 on thu 30 apr 98
Hi All, am new to clayart and new to kiln building. Hope to build castable
refractory (or not) for soda this summer and will have many questions, but
first need to know if I should worry about frostline when pouring cement pad.
Building codes for houses say 4 ft. down..that seems like one heck of a lot of
cement!! How about just footings for a slab. Any ideas? -Laurie in upstate
N.Y.
Kenneth D. Westfall on fri 1 may 98
Laurie
Yes you need to worry about frost even for a kiln pad. With out the
proper footing the slab will heave and cause the kiln problems. I believe
you will find that the code means that you must have a footer 4 foot down
not a slab poured four foot down. A slap of cement four foot thick would be
what you need for a skyscraper to sit on not a house.
Talbott on fri 1 may 98
Laurie...
A good "floating slab" will work as long as you dig out the loam
and bring in some good fill like 3/4" crushed gravel and compact well with
a motorized tamper in order to establish a relatively stable base for the
kiln pad to rest on. I did a detailed report on this about a year or two
ago. I don't know if it is in the clayart archives or not but might be
worth your while to check... Marshall in Maine
>----------------------------Original message----------------------------
>Hi All, am new to clayart and new to kiln building. Hope to build castable
>refractory (or not) for soda this summer and will have many questions, but
>first need to know if I should worry about frostline when pouring cement pad.
>Building codes for houses say 4 ft. down..that seems like one heck of a lot of
>cement!! How about just footings for a slab. Any ideas? -Laurie in upstate
>N.Y.
http://www.PotteryInfo.com
101 CLAYART MUGS (Summer 1998)
2ND ANNUAL CLAYARTERS' GALLERY - NAPLES, MAINE (Summer 1998)
E-MAIL ME FOR APPLICATIONS
Celia & Marshall Talbott, Pottery By Celia, Route 114, P O Box 4116,
Naples, Maine 04055-4116,(207)693-6100 voice and fax,(call first)
---------------------------------------------------------------------
Jennifer Boyer on fri 1 may 98
Hi Laurie,
It depends what kind of ground you have. I put a floating slab(no
footings) in for my first kiln in the 70's. Everything okay for a few
years, but then my burners started moving in relation to the kiln., The
plumbing was on the posts of the building and it turns out the kiln
slab was sinking on one side. It got worse over time and I had to dig
under the pad on one side, jack it up and pile in rock footings. Not
fun. The ground I had built on had been bull dozed during the
construction of our house. It wasn't compacted enough to form a stable
base for the slab. So ask around in your area for more advice before
you take any chances.
Take Care
Jennifer
Mag727 wrote:
> ----------------------------Original
> message----------------------------
> Hi All, am new to clayart and new to kiln building. Hope to build
> castable
> refractory (or not) for soda this summer and will have many questions,
> but
> first need to know if I should worry about frostline when pouring
> cement pad.
> Building codes for houses say 4 ft. down..that seems like one heck of
> a lot of
> cement!! How about just footings for a slab. Any ideas? -Laurie in
> upstate
> N.Y.
--
~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*
Jennifer Boyer jboyer@plainfield.bypass.com
Thistle Hill Pottery
Powder Horn Glen Rd
Montpelier, VT 05602
~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*
Kathy E. McDonald on sat 2 may 98
Hi Laurie...
You may already have received this advice but for what it's worth...
when I built a 50 cu ft hard and softbrick kiln a number of years ago
we put rebar in the concrete to counteract all of the problems that are so
typical to Manitoba,Canada's harsh winter ......also dug down a fair bit
....I did not measure but remember digging for what seemed like days......and
filled the hole with crushed rock and gravel ..... before we poured the
slab.
Kiln has been there for 12 yrs now...couple of cracks in the concrete
slab...but no heaving.
Kathy
http://members.tripod.com/~kmcd3
--
>----------------------------Original message----------------------------
>Hi All, am new to clayart and new to kiln building. Hope to build castable
>refractory (or not) for soda this summer and will have many questions, but
>first need to know if I should worry about frostline when pouring cement
pad.
>Building codes for houses say 4 ft. down..that seems like one heck of a lot
of
>cement!! How about just footings for a slab. Any ideas? -Laurie in upstate
>N.Y.
)
---------------------------------------------------------------------
Arturo M DeVitalis on sat 2 may 98
In Rochester NY my slab is on a slight dome in the back yard...dug out
only 30 inches and filled it with old bed springs, some rebar, bycycle
frame, junk metal. Hasn't moved in 15 years...I think its called a
"floating slab", but I'm not sure of this.
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Bonnema on sun 3 may 98
Hi Laurie,
We built our kiln house 24 years ago here in Bethel Maine, and it is still
doing well. The method I used for the floor and the foundation for the
walls was to dig a footing around the perimeter about 4 feet deep and wide
enough to lay in cement blocks. I poured a concrete footing and then layed
block up to the height of the floor and used the block as the forms for the
slab. The slab was 4-5" thick and reenforced. We used cement block for the
walls too, to cut down on fire danger. The slab and kiln house have held up
well for 24 Maine winters with only minor cracking.
Garret Bonnema
--
Garret Bonnema
bonnema@megalink.net
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