Should I dig up the Stone Dust?

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  #1  
Old 10-26-10, 11:42 AM
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Join Date: Oct 2010
Location: USA
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Should I dig up the Stone Dust?

I have an aprox. 35' long walkway that was made out of brick and laid in stone dust. The previous home owner put a crown in the walkway which became very slippery so I pulled up all the brick and found aprox. 6" of stone dust. I bought some concrete pavers to replace the brick. Everything I read recommends approx. 4" of 3/4 minus for a base then an inch of sand for pavers. What will happen if I leave stone dust and add 1" of sand? Is it worth the time for the sand?

Sorry for the long post? Any tips would be greatly appreciated!
 
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  #2  
Old 10-26-10, 12:00 PM
Join Date: Mar 2005
Location: USA
Posts: 6,126
The stone dust should be O.K. for a sidewalk.

Grade the top to match the slope you want the paver surface to march.

Add a uniform 1" layer of concrete sand.You do not use the uniform 1" setting bed to control the slope or drainage.

It is best if you have an edge restraint to hold the pavers in place and not allow them to separate and then "rock" and become unstable.

Dick
 
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