Hank Murrow on sat 24 feb 07
On Feb 24, 2007, at 11:11 AM, Duff bogen wrote:
> Robert
> Hobart Butte- I recall that David Stannard did some work with this
> material. Maybe Hank knows how to contact him.
Until yesterday, Stannard was in Eugene. He is now on his way back to
Fairbanks and I have put Robert in touch with him by email.
> Refractory Clay- There's a sandy/micaseous clay west of eugene. It's
> basiclly in the northwest quadrant of the intersection of w. 11th and
> Baily hill rd. In the late 60's you could get to a barrow pit. Last
> time I drove by this pond had become the water feature of a small
> industrial park??? There's also a self storage place whose yard
> abutts the clay. Maybe they could be approached...
I did contact them before the buildings covered the site, and that
snady loam was used in eugene in the early part of the last century for
casting (foundry) sand. Some added to stoneware clay would open it up
like the clays around Tajimi and Mino, where the Shinos come from..
>
> I've seen fir sawdust used in a "home made" ram packed castable.
> This was use dfor back-up insulation. I'd save the sawdust for fuel.
> Stannard fired at his Hilltop pottery to cone 10/11. You mentioned
> multi- fuel, to me this means sawdust wood and fuel oil used together.
>
> The castable tests I've done were with, by volume- Vermiculite 5,
> Lincoln F.C. 1, Portland cement1. This fired well to cone 5 in ox. but
> slagged down in reduction @ 9/10. Today I'd try this with Perlite and
> White Portland Cement- hasta manana.
>
> A formula I got from robert turner was 60alumina:40OM4. This is
> approximatley equal volumes so thats how I've mixed it. I've used it
> in a couple different situations. The longest being for buttons to
> hold ceramic fiber in a kiln that was fired for about 10years. I'm
> dreaming of using this as hot face tiles backed with castable- hasta
> manana.
>
> I don't know what happened to Monroe Clay products. They used to
> dig a sandy ochre clay near Cheshire that they used in firebrick for
> their own use.
>
> Duff
Cheers, Hank
www.murrow.biz/hank
Duff bogen on sat 24 feb 07
Robert
Hobart Butte- I recall that David Stannard did some work with this material. Maybe Hank knows how to contact him.
Refractory Clay- There's a sandy/micaseous clay west of eugene. It's basiclly in the northwest quadrant of the intersection of w. 11th and Baily hill rd. In the late 60's you could get to a barrow pit. Last time I drove by this pond had become the water feature of a small industrial park??? There's also a self storage place whose yard abutts the clay. Maybe they could be approached...
I've seen fir sawdust used in a "home made" ram packed castable. This was use dfor back-up insulation. I'd save the sawdust for fuel. Stannard fired at his Hilltop pottery to cone 10/11. You mentioned multi- fuel, to me this means sawdust wood and fuel oil used together.
The castable tests I've done were with, by volume- Vermiculite 5, Lincoln F.C. 1, Portland cement1. This fired well to cone 5 in ox. but slagged down in reduction @ 9/10. Today I'd try this with Perlite and White Portland Cement- hasta manana.
A formula I got from robert turner was 60alumina:40OM4. This is approximatley equal volumes so thats how I've mixed it. I've used it in a couple different situations. The longest being for buttons to hold ceramic fiber in a kiln that was fired for about 10years. I'm dreaming of using this as hot face tiles backed with castable- hasta manana.
I don't know what happened to Monroe Clay products. They used to dig a sandy ochre clay near Cheshire that they used in firebrick for their own use.
Duff
Robert Reeve wrote:
Thanks for the reply Hank. I've been in Eugene for a few months but kind of
scrambling to get on my feet. Would've called sooner. My family is up now
and we have a house in Cottage Grove. Starting to mellow out a little. The
fire clay is on Hobart Butte in the southwest corner of Lane County near the
town of London. It was quite thoroughly prospected and documented in WWII
as a potential source of aluminum ore. Willamina Brick used it for a while
back in the day and the quarry face is still there and accessible albeit a
bit steep getting there. As near as I can tell it's BLM and no one seems to
care about small amounts. Kind of place the locals go to shoot skeet and
have a few beers. I can send you the docs if you like. I'm also pursuing
some references in Cottage Grove from the same time frame. I've narrowed
them down to two 80 acre properties, one of which I can access to prospect
and the other, which is owned by Werehauser, I'm stumped to gain access.
Again Hobart is flint... extremely non-plastic. The most detail on the
Taylor that I have is reported as a pink shale with 2 or 3% iron and 30%
alumina. Again not likely plastic but potentially could bring up a low temp
plastic clay. There are also plastic clays in both places which could be
derived from the refractory deposits but I haven't walked enough yet and
haven't had a kiln. Keep in touch.
Robert
On 2/18/07, Hank Murrow wrote:
>
> On Feb 17, 2007, at 11:18 AM, Robert Reeve wrote:
> s
> > I need a wheel, extruder and gas kiln around 20 cu ft. If anyone in
> > the area knows of any used let me know. Also I'm finding some local
> > clays that research indicates may have some refractory qualities. I'd
> > appreciate in anyone have space in C10 firings for some test tiles.
> > Let me know
>
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