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Concrete casting question Mark 10-11-2006
|--> Re: Concrete casting question ke4fxc_at_knology_dot_net10-11-2006
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Posted by Mark on October 11, 2006, 1:29 pm
Can anyone tell me how this concrete post cap was created?

http://www.canleyworks.com/temp/concrete/

Thanks
-Mark



Posted by Mike on October 11, 2006, 1:48 pm

> Can anyone tell me how this concrete post cap was created?
>
> http://www.canleyworks.com/temp/concrete/
>
> Thanks
> -Mark
>
>
Could have been factory cast.



Posted by Bob Morrison on October 11, 2006, 2:37 pm
In a previous post Mark wrote...
> Can anyone tell me how this concrete post cap was created?
>

Probably cast upside down in a metal form. Looks like a cement rich mix
with pea gravel and possibly a medium or high range water reducer to
reduce shrinkage and cracking.

--
Bob Morrison, PE, SE
R L Morrison Engineering Co
Structural & Civil Engineering
Poulsbo WA
bob at rlmorrisonengr dot com

Posted by on October 11, 2006, 5:51 pm
Mark wrote:
> Can anyone tell me how this concrete post cap was created?
>
> http://www.canleyworks.com/temp/concrete/
>
> Thanks
> -Mark
>
>
mark, look into the way they make concrete counter tops some use formers
with all the detail in place like split pvc tubing and plugs through the
concrete to make mounting holes for fixtures to the concrete. The molds
can be a negative like the way the caps were problem made.the form
should be very slick like melemain (sp). use wire mesh and or rebar
like in any concrete work for strength. this is a touch on how the
system can work. There are books and info on the web and your local big
box home inprovment stores.
hope this helps with an ideas.


Charles The LURKER :)

Posted by RicodJour on October 11, 2006, 8:46 pm


> Can anyone tell me how this concrete post cap was created?
>
> http://www.canleyworks.com/temp/concrete/

I could tell you how to make that as a concrete cap, but I'm not sure
that it is concrete. There appear to be seams in odd locations for a
concrete (seamless) pour. Are you sure it's not a built-up limestone
cap?

R


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