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wall base

Discussion in 'Hardscaping' started by bobcatnj, Apr 12, 2007.

  1. bobcatnj

    bobcatnj LawnSite Senior Member
    Posts: 687

    what are you guys using for retaining wall base? was talking to a guy the other day and he was using stone dust. i usually use 3/4 stone. can dust be used?
  2. neversatisfiedj

    neversatisfiedj LawnSite Bronze Member
    Posts: 1,028

    Road base / Cr6 here in MD.
  3. bobcatnj

    bobcatnj LawnSite Senior Member
    Posts: 687

    road base cr6= 3/4 clean????
  4. senatorcongressman

    senatorcongressman LawnSite Member
    from WDC
    Posts: 40

    cr6 = 1" minus. lotsa fines so it compacts well
  5. PatriotLandscape

    PatriotLandscape LawnSite Bronze Member
    from MA
    Posts: 1,209

    stay away from stone dust it will migrate over time and is not the best product for the customer. Dust will work great on the short term but down the road the wall could fail.
  6. D Felix

    D Felix LawnSite Bronze Member
    Posts: 1,898

    Yep, 1" down to dust, or 3/4" down to dust (road base) should be used for wall base. No stone dust, no clean stone.

    The problem we have right *now* is it's all really wet from sitting in the piles at the quarry all winter. If the first 15 tons we got for our first hardscape job of the year (still in process) had been any wetter, we could have pulled it out like concrete!
  7. bobcatnj

    bobcatnj LawnSite Senior Member
    Posts: 687

    so you use 3/4 qp
  8. D Felix

    D Felix LawnSite Bronze Member
    Posts: 1,898

    Nope, no qp around here. It's either 53's or 73's.

    The different terms is why you need to use a description (3/4- or 3/4 clean, etc) instead of the name on this board...
  9. Mike33

    Mike33 LawnSite Bronze Member
    Posts: 1,649

    i use 57's.
  10. cgland

    cgland LawnSite Bronze Member
    Posts: 1,929

    Dan - I have to disagree with your comment about not using clean stone for wall base. It is actually an accepted practice by NCMA and is becoming more popular these days. As you know, clean stone should be used in all water applications as well.


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