1. Missed the live Ask the Expert event?
    Catch up on the conversation with Ken Hutcheson, President of U.S. Lawns in the Franchising forum plus sign up to receive a FREE eBook on how to grow your landscape business.

    Dismiss Notice

Nieghbors new retaining wall collapsed.

Discussion in 'Hardscaping' started by jimmyzlc, Dec 28, 2008.

  1. packey

    packey LawnSite Senior Member
    Messages: 556

    the only place I use drainage stone is directly around the drain. I use the concrete sand beyond that point. so instead of filling the whole back of the wall with drainage stone I utilize the concrete sand. I have personally found it to be more stable and yet it still drains well
  2. jimmyzlc

    jimmyzlc LawnSite Senior Member
    Messages: 376

    I'll try and get a few more pics up. The blocks they used where from Lowe's.
  3. AztlanLC

    AztlanLC LawnSite Bronze Member
    Messages: 1,050

    Well if it works for you that is fine I guess for me I wouldn't feel safe using this method since I feel overtime sand will start migrating out or clogging up the drain much faster even using geotex.
  4. loupiscopolandscaping

    loupiscopolandscaping LawnSite Senior Member
    Messages: 320

    personally i would have used a better block. like a pin system from versa lock to anchor country manor. every wall has its limits and every wall must to constructed for its peak strength
  5. btammo

    btammo LawnSite Member
    Messages: 98

    Really? I would never use sand of any type behind a wall. I have yet to see any type of sand that would drain enough for my satisfaction. I run stone all the way bottom to top surrounded by fabric.
  6. LB1234

    LB1234 LawnSite Gold Member
    Messages: 3,208

    I wouldn't even think of using sand directly behind my wall. It's very simple...place a pile of drainage stone next to a pile of sand (whichever kind) wait a week or so before a few rains hit it and then tell me which one has the higher moisture content.

    I would also think a place like colorado would have a large amount of freeze/thaw cycles and that wouldn't help the sand behind the wall issue either.

    Now that I think about it...(1) for me the drainage stone is WAAYYY cheaper than the sand and (2) to properly compact sand (correct me if I'm wrong) you'd need a jumping jack in addition to the plate compactor.

Share This Page