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Old 03-15-2006, 10:19 AM
jamie30 jamie30 is offline
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4 year old clay. Over kill on the base for patio

I am thinking of using a layer of 6" stone first layer and then 3/4" crushed 6" thick for a base. This is the setting for a 24" high wall around the paved patio and back filled with 3/4"clear (because of frost) and then landscaping tapered down to the yard for privacy. In everyones professional opinion is this over kill? Remembering that this is 4 year old clay.
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Old 03-15-2006, 06:46 PM
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scagwildcat scagwildcat is offline
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how do you put an age on clay or any soil for the matter ???? or am i missing something?
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Old 03-15-2006, 06:55 PM
jamie30 jamie30 is offline
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The home that is receiving the patio was built 4 years ago and i hope all the settling has occured
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Old 03-15-2006, 09:56 PM
PSUturf PSUturf is offline
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You might consider putting a layer of fabric over the clay to prevent stone from migrating down into the clay
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Old 03-16-2006, 08:48 AM
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Grassmechanic Grassmechanic is offline
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Quote:
Originally Posted by jamie30
The home that is receiving the patio was built 4 years ago and i hope all the settling has occured
I had a soils professor in college tell me that disturbed clay will not completely settle on it's own for 10 yrs.
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Old 03-16-2006, 07:35 PM
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steve in Pa. steve in Pa. is offline
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I would say that 12" of stone for a 2' wall is definitly overkill. icpi only recommends 10-12" of stone base for driveway pavers. I would think that the soil is settled after 4 years.
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Old 03-16-2006, 10:07 PM
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MarcusLndscp MarcusLndscp is offline
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What type of wall? Rock? Block?

No matter what you do use fabric and there is no need to use 6" and then 3/4". Keep your base material the same. 6" is way to big to build a wall on. If you want the wall to heave then go ahead and build it on the clay if not dig down to hard pan
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