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<div class="moz-cite-prefix">Hi Frantisek, <br>
One good way to make the top is to build a mold of formica with
the smooth side facing in so that you will have a nice smooth
surface to pour the top into. You are working upside down here.
If you want any includes at the surface then they go in first.
It's an upside down cake. A nice smooth mold surface will save
you a LOT of sanding & coughing.<br>
<br>
The tensil strength of concrete is not particularly good. You
will need some metal or wood below the surface level. I don't
know what they are called, but there are meshes of rebar type
metal that you can use for the strength layer. <br>
<br>
At the end it is a matter of attaching the table top to the legs.
You probably want to imbed some attaching mechanism into the top
and/ or legs while you are pouring. I recommend thinking this step
through completely before you start. <br>
<br>
You may wish to use the same sort of formica boxes for the leg
mold. <br>
<br>
Don't forget a release material. I don't know what kind of
release agent is needed for cement. <br>
<br>
hth, all the best to you there in Korea, <br>
Claudia <br>
<br>
<br>
On 9/4/2013 6:20 PM, Rikke Rasmussen wrote:<br>
</div>
<blockquote
cite="mid:CALZhpzLC0_ZX58EDW2QROemL7Gor84r-yoVGKBsUWBcuKzAm_g@mail.gmail.com"
type="cite">
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charset=ISO-8859-1">
<div dir="ltr">+1
<div><br>
</div>
<div>It looks amazing! Rockin' job, Jarrod!<br>
</div>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Wed, Sep 4, 2013 at 11:20 AM, jarrod
hicks <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:hicksu@gmail.com" target="_blank">hicksu@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote">
<div dir="ltr">I started by watching several youtube videos
explaining the process of creating concrete counter tops
in various ways.
<div>
<br>
</div>
<div>I ended up choosing quikrete 5000 for concrete. This
comes in 60 or 80 pound bags with cement, sand, and a
small rock aggregate already mixed together. Only water
has to be added. We used a pretty dry mix that was hard
to work with, but should turn out strong. The concrete
layer is at least 2" thick, some of the videos I saw
said one could get away with 1.5" thick.</div>
<div><br>
</div>
<div>We used a welded wire concrete reinforcing mesh
inside the counter-top about 1/2" from the bottom of
concrete. Most instructions recommended using
reinforcement to control cracking. Although I couldn't
find it nearby, another recommended reinforcement
material was masonry block ladder wire.</div>
<div><br>
</div>
<div>The forms were attached to the table, protected with
polyurethane, and we poured directly onto it. The other
popular way of making these counter tops is to pour into
a form that is separate from the counter so that the
nice flat bottom of the form becomes the nice flat top
of the counter.</div>
<div><br>
</div>
<div>After removing the forms, I patched any large voids
with pour stone. If we used a slightly wetter concrete
mix and more vibration we probably could have greatly
reduced these. </div>
<div><br>
</div>
<div>
The top was finished using hand trowels during the pour
and a masonry grinding wheel with our grinder/polisher
after 7 days of curing. Then covered with a generous
coat of penetrating concrete sealer.</div>
<div><br>
</div>
<div>Cheers</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Wed, Sep 4, 2013 at 3:46 AM,
Frantisek Apfelbeck <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:algoldor@yahoo.com" target="_blank">algoldor@yahoo.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote">
<div>
<div>
<div>Hi Jarrod,</div>
<div>Thanks a lot for the info! I'm actually
going to build table with concrete top in next
few days and it is my first time. I wonder
could you recommend me how shall I approach
the top concrete layer? Is it just cement
mixed with water no sand no iron for
strengthening? How thick do you think I should
go? There is no stove in it, the propose of
the table is to serve as a preparation place
handling however hot stuff (it is suppose to
handle the thinks coming out of the oven).
Also I wonder what is the concrete finish
which you are mentioning in the how to?</div>
<div><br>
</div>
<div>The table is going to be used in a small
hostel here in Jeju (island South of South
Korea - part of the country) next to the
concrete oven which I helped to build. I'm one
of the cofounders of Tastebridge so it is
really nice to see any project like this to
help to keep the food hacking in the game in
the place!</div>
<div><br>
</div>
<div>
Many thanks for any info and your time and
effort with the project!</div>
<div>
<br>
</div>
<div>Sincerely, </div>
<div class="im">
<div>
</div>
<div>Frantisek Algoldor Apfelbeck</div>
<div><br>
<br>
</div>
<div>biotechnologist&kvasir and hacker</div>
<br>
<div><br>
</div>
<div><a moz-do-not-send="true"
href="http://www.frantisekapfelbeck.org"
target="_blank">http://www.frantisekapfelbeck.org</a></div>
<div><br>
<br>
</div>
<div>"There is no way to peace, peace is the
way." Mohandas Karamchand Gandhi<br>
</div>
<br>
</div>
<div>
<div>
<div dir="ltr">
<hr> <b><span>From:</span></b> jarrod
hicks <<a moz-do-not-send="true"
href="mailto:hicksu@gmail.com"
target="_blank">hicksu@gmail.com</a>><br>
<b><span>To:</span></b> NoiseBridge
Discuss <<a moz-do-not-send="true"
href="mailto:noisebridge-discuss@lists.noisebridge.net"
target="_blank">noisebridge-discuss@lists.noisebridge.net</a>>
<br>
<b><span>Sent:</span></b> Wednesday,
September 4, 2013 10:10 AM<br>
<b><span>Subject:</span></b>
[Noisebridge-discuss] Made at Noisebridge
- Concrete Stove<br>
</div>
<div>
<div>
<div class="h5">
<div>
<div><br>
<div>
<div dir="ltr">
<div>Here is some photo
documentation of the new
stove that I installed
yesterday. Big thanks to all
that helped, and those that
resisted writing their names
in the concrete while it
cured.</div>
<div><br>
</div>
<a moz-do-not-send="true"
rel="nofollow"
href="https://noisebridge.net/wiki/Concrete_Stove"
target="_blank">https://<span>noisebridge</span>.net/wiki/Concrete_Stove</a><br>
<div><br>
</div>
<div>Cheers.</div>
<div><br>
</div>
<div>(If anyone feels the urge
to send some cash my way to
help offset the materials
cost, that would be sweet
and it would likely end up
spent on the next <span>Noisebridge</span>
improvement anyway. No
worries though, it was a fun
project.)</div>
</div>
</div>
<br>
</div>
</div>
</div>
</div>
<div class="im">
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