Ok here it goes.... I am a concrete contractor for over 35 yrs. I am being asked to perform a job that is asking for cast and place concrete walls with an 1/8" radious edge on all the top corners or all the edges. I have never had good experience with this and can not find the proper top tools for this. Any feed back.????
Concrete Question please help!!!
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I've never seen it, but here is a picture.
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How tall is the wall? Is there a designed mix speced out? What's this wall for? I'm assuming appearance is important.
How tall is the wall? Is there a designed mix speced out? What's this wall for? I'm assuming appearance is important.
The wall isn't the issue. It's done. I have done enough walls. It is the 1/8" edge that is the issue. Designer is wanting it. He seems to believe that this is done all the time. I didn't catch it on the plans cause no one does this.
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1,435 Posts
I would just run over it with a 7" grinder.
We see idiots like that from time to time.
We always put the edge on afterwards.
we use a router bit for stone, but never been able to find a 1/8" one.
We talk them into a 3/16" radius it's only a 1/16" bigger than 1/8", so they accept it.
http://www.toolocity.com/diamond-hand-router-bit-B3-16.aspx
We also have the wet router.
Just goggle router bits for stone & there are many places to purchase both.
You could also get a price from a stone counter top guy to come out & do it.
We always put the edge on afterwards.
we use a router bit for stone, but never been able to find a 1/8" one.
We talk them into a 3/16" radius it's only a 1/16" bigger than 1/8", so they accept it.
http://www.toolocity.com/diamond-hand-router-bit-B3-16.aspx
We also have the wet router.
Just goggle router bits for stone & there are many places to purchase both.
You could also get a price from a stone counter top guy to come out & do it.
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21 Posts
what's wrong with using a fine grit rubbing stone? Or buying a dry grinding pad (obviously not a turbo, or diamond cup wheel) used for c-tops, suppliers; White Cap, Granite City Tool, to name a couple. Then ease the edge. Yea, you may have to touch it up with a cementious patching compound; Mapei, Ardex, or not.
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pool plastering step trowel trick
for inside or outside radius.get a plastic butter carton top.cut into a smooth circle ,when the mud sets a bit flex the disc any angle you want to smooth out. works great fo finishing. hope this helps for the future.
for inside or outside radius.get a plastic butter carton top.cut into a smooth circle ,when the mud sets a bit flex the disc any angle you want to smooth out. works great fo finishing. hope this helps for the future.
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Offer them the choice - eased with a grinder/polisher, or 3/16 routed.
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6,273 Posts
Just tell them to A chamfer the edge, or B increase the radius.. I'm reasonably sure that smashing your head on a 1/8" or 1/4" radius edge will be bad regardless. :whistling
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