4 year old clay. Over kill on the base for patio

Discussion in 'Landscape Architecture and Design' started by jamie30, Mar 15, 2006.

  1. jamie30

    jamie30 LawnSite Member
    Posts: 2

    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.
     
  2. scagwildcat

    scagwildcat LawnSite Senior Member
    from nw. ct.
    Posts: 507

    how do you put an age on clay or any soil for the matter ???? or am i missing something?
     
  3. jamie30

    jamie30 LawnSite Member
    Posts: 2

    The home that is receiving the patio was built 4 years ago and i hope all the settling has occured
     
  4. PSUturf

    PSUturf LawnSite Senior Member
    Posts: 663

    You might consider putting a layer of fabric over the clay to prevent stone from migrating down into the clay
     
  5. Grassmechanic

    Grassmechanic LawnSite Silver Member
    Posts: 2,697

    I had a soils professor in college tell me that disturbed clay will not completely settle on it's own for 10 yrs.
     
  6. steve in Pa.

    steve in Pa. LawnSite Senior Member
    Posts: 294

    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.
     
  7. MarcusLndscp

    MarcusLndscp LawnSite Senior Member
    Posts: 634

    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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