Linda Blossom on sat 10 jun 06
Recently a client brought me some tiles for color
coordination with my own work. These were tiles
that were going to be used on a floor. According to
the salesperson these tiles contained 40% recycled
materials. I went to the website and found this
statement at the site. I plan to contact the person
listed there but wanted to see what others thought
of this. Just how much of a clay body could be
recycled - something with 40% grog??? After all grog
could be considered a recycled product but as we
know fired clay has gone through a chemical change
and isn't reusable as clay after firing unless it is
to be used as grog. I wonder if others have run
into this. Here is the link to the page making this
claim.
Linda
http://www.crossvilleinc.com/whatsnew_item.cfm?Whats
New_ID=13&FilterYear=2006
Des & Jan Howard on sun 11 jun 06
Linda
What about clay sizing from paper recycling?
That would classify as the "fine particulate waste material" & would be
in an unfired state.
Waste glazes also fall in to this category, David H adds his to clay
batches.
The dried waste we used to collect from a local sewage treatment works
drying beds
& till into our paddocks had the texture of papier mache.
This could help in the tile making process, the "certified recycled
content of 40 percent",
doesn't have to be there after firing.
It wasn't clear to me if the waste stream was their own or from another
company's processes.
Des
Linda Blossom wrote:
>Recently a client brought me some tiles for color
>coordination with my own work. These were tiles
>that were going to be used on a floor. According to
>the salesperson these tiles contained 40% recycled
>materials. I went to the website and found this
>statement at the site. I plan to contact the person
>listed there but wanted to see what others thought
>of this. Just how much of a clay body could be
>recycled - something with 40% grog??? After all grog
>could be considered a recycled product but as we
>know fired clay has gone through a chemical change
>and isn't reusable as clay after firing unless it is
>to be used as grog. I wonder if others have run
>into this.
>
>
--
Des & Jan Howard
Lue Pottery
LUE NSW 2850
Australia
Ph/Fax 02 6373 6419
http://www.luepottery.hwy.com.au
iglasgo on sun 11 jun 06
Linda,
I'm not exactly sure what you are asking, but... There are several
companies out there who make tiles using 40 or more percent recycled
bottle glass. For instance, I have used Terra Green's "Traffic" tile
on a project before. It has a somewhat coarse texture, and no
translucency to speak of. http://www.terragreenceramics.com/
hth,
Ivy G.
--- In clayart@yahoogroups.com, Des & Jan Howard wrote:
>
> Linda
> What about clay sizing from paper recycling?
> That would classify as the "fine particulate waste material" & would be
> in an unfired state.
> Waste glazes also fall in to this category, David H adds his to clay
> batches.
> The dried waste we used to collect from a local sewage treatment works
> drying beds
> & till into our paddocks had the texture of papier mache.
> This could help in the tile making process, the "certified recycled
> content of 40 percent",
> doesn't have to be there after firing.
>
> It wasn't clear to me if the waste stream was their own or from another
> company's processes.
> Des
>
> Linda Blossom wrote:
>
> >Recently a client brought me some tiles for color
> >coordination with my own work. These were tiles
> >that were going to be used on a floor. According to
> >the salesperson these tiles contained 40% recycled
> >materials. I went to the website and found this
> >statement at the site. I plan to contact the person
> >listed there but wanted to see what others thought
> >of this. Just how much of a clay body could be
> >recycled - something with 40% grog??? After all grog
> >could be considered a recycled product but as we
> >know fired clay has gone through a chemical change
> >and isn't reusable as clay after firing unless it is
> >to be used as grog. I wonder if others have run
> >into this.
> >
> >
>
> --
> Des & Jan Howard
> Lue Pottery
> LUE NSW 2850
> Australia
> Ph/Fax 02 6373 6419
> http://www.luepottery.hwy.com.au
>
>
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Ivor and Olive Lewis on mon 12 jun 06
Dear Linda Blossom,=20
You may recall that many clay bodies, especially Porcelain types, have =
upwards of 50% none plastic materials in their composition. So having =
40% recycled tile in a body seems reasonable.
Though soaking in water may not restore the plastic qualities of a =
mature body, once it is fired above a certain temperature it will react =
to become a well integrated part of the ceramic fabric. Also, don't =
forget that there are many mesh grades from coarse to fine dust that can =
be used.
If a binder of some description were used and the tiles were made by =
pressing then it would be possible to use 100% recycled ceramic stock.
Best regards,
Ivor Lewis.
Redhill,
South Australia.
Brian Fistler on mon 12 jun 06
Also, remember that a "commercial" tile manufacturer probably isn't
concerned with the plasticity of the product anyway...
I just saw an episode of "How it's Made" last week that had a segment on
making tiles.
They took the powdered ingredients, wetted it only slightly with water,
making a moist powder. The powder is then put in a mold and pressed
with tons of pressure to create the tile.
The tile then heads off on a conveyor. The tiles were strong enough
after the pressing to handle high speed conveyors, bumps, sorting, being
flipped over by the automatic system etc. That method of creating tile
would easily lend itself to large amounts of "recycled content" as long
as there were just enough binder to keep things together before and
after firing.
Brian
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