Old 04-22-2010, 11:24 PM
ponddude ponddude is offline
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Join Date: Dec 2009
Location: Springfield, IL
Posts: 38
How to copy old flagstone

I am rebuilding a 20 year old pond with flagstone edging on the sides. I tore up most of it, but they want to keep half and add the broken peices to create a new pathway to the old.

I have limited experience with hardscapes and flagstone. I always thought everyone put a layer of sand down, tamped it and set stone on it.

What the original installer did was lay down a layer of 3" mortar, set the stone down and looks like they motared the joints.

Can I lay it down using sand and then somehow motor joints to make it look like the old stuff?

Any thoughts?
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Old 04-23-2010, 08:07 PM
Summit L & D Summit L & D is offline
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Join Date: Mar 2008
Location: South Texas
Posts: 269
If you try to go back in with mortared joints only, you will see them start to crack and flake out right away. We have had good luck using Polymeric sand in the joints on dry-lay walkways. You might try that. Otherwise, you're going to need to do a complete wet lay.
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Old 04-30-2010, 01:56 PM
RCP Block RCP Block is offline
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Join Date: Apr 2010
Location: San Diego, CA
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I agree with Summit L & D...
Instead of wet-setting the stone and mortaring the joints, a good option would be to lay them in sand (1" on top of compacted base), and then fill the joints with a polymeric sand product such as Gator Dust from Alliance. It will give you a solid joint similar to mortar.

Check it out: http://www.gatordustbond.com/

Good Luck!
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