Concrete block and retaining wall

Discussion in 'Hardscaping' started by b landscaping, Apr 1, 2014.

  1. b landscaping

    b landscaping LawnSite Member
    Posts: 74

    The retaining wall which we are about to build is joining up to a concrete block wall. When they join each other at the section what should be done to join these two areas together. Any pictures or Info will be helpful. Thanks
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  2. underESTIMATED

    underESTIMATED LawnSite Member
    Posts: 130

    Bump. Im also interested.
     
  3. alldayrj

    alldayrj LawnSite Gold Member
    Posts: 3,759

    You could dowel pieces of rebar in. This is what we do on foundation extensions
     
  4. Snyder's Lawn Inc

    Snyder's Lawn Inc LawnSite Platinum Member
    Posts: 4,541

    pin it ////////////////////////
     
  5. E-mans Hardscapes

    E-mans Hardscapes LawnSite Member
    Posts: 164

    Where your srw meets the concrete wall 90 it and build a wall along the concrete. Pinning the corner together. Basically as a dead men
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  6. landscapedesignpros

    landscapedesignpros LawnSite Senior Member
    Posts: 337

    I wouldn't go pinning a retaining wall to a poured wall if your in an area that the ground freezes. the concrete wall at least where Im at is more than likely poured below frost and dose not move when the ground freezes, while a retaining wall is designed to move with the frost. 90ing the wall is a good solution Im not sure where your at or what the climate is like there.
     
  7. landscapedesignpros

    landscapedesignpros LawnSite Senior Member
    Posts: 337

    sorry just re read that your looking at a block wall which should be below frost as well so I wouldnt pin a retaining wall into that either if your ground freezes as they will most differently
     
  8. E-mans Hardscapes

    E-mans Hardscapes LawnSite Member
    Posts: 164

    I was talking about pinning the 90 together. We drill all of our corners and rely on the pins instead of glue. Definitely make the wall free floating from the concrete.
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  9. landscapedesignpros

    landscapedesignpros LawnSite Senior Member
    Posts: 337

    so you drill in rebar? 12" spike? never heard of that but the idea sounds neat
     
  10. E-mans Hardscapes

    E-mans Hardscapes LawnSite Member
    Posts: 164

    We use a lot of versa lok. So we have tons of versa pins laying around. 1/2" masonry bit on our hammer drill and usually put 3 pins per corner block.
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