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Old 06-04-2012, 09:50 PM   #1
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installing pavers


hello all. my question is about installing pavers. I am planning to install pavers in my backyard around the pool. I am going to first pour a concrete base. From what I understand, pavers are installed on sand even if there is a concrete base. What I don't understand is why do I have to use sand, why can't I permanently install pavers right on concrete with mortar mix or thinset? Wouldn't it be sturdier and longer lasting to use mortar install of a sand base?

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Old 06-04-2012, 11:42 PM   #2
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installing pavers


Quote:
Originally Posted by leon718 View Post
From what I understand, pavers are installed on sand even if there is a concrete base.
I have to ask "Sez who?".

Quote:
What I don't understand is why do I have to use sand, why can't I permanently install pavers right on concrete with mortar mix or thinset? Wouldn't it be sturdier and longer lasting to use mortar install of a sand base?

Thanks!

I think you're right on the money with that. As a matter of fact, here in central NC, that's the only way I've seen pavers on concrete.

Only time I see pavers on a sand base, is when there's a compacted base such as this: http://www.wikihow.com/Image:Pavers_diagram_294.jpg

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Old 06-05-2012, 07:57 AM   #3
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installing pavers


What kind of pavers? Clay or the roughly 8"x4" interlocking concrete pavers. - The bigger concrete pavers are NOT pavers, but "stepping stones".

The why is based on the fact that the interlocking concrete pavers are the most commonly used by a wide margin and the installation over a compacted base and 1" sand setting bed is by far the most trouble-free method. The high strength (8,000 - 10,000 psi) of the concrete allows the interlock between the paver and ability to be finished off with a vibratory plate compactor. This is why concrete pavers are generally used on used on large installations (up to 40 acres) with heavier loads such as driveways, streets, airport taxiways and industrial facilities.

For a smaller, casual installation in relatively low freeze-thaw conditions gluing down any pavers will work for a while if the adhesive can perform considering the moisture and freezing since the slab underneath prevents the water from draing away underneath.

Dick
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