How does a concrete bag wall hold up?

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Looking for input from persons who have built or who know someone who has built a concrete bag wall as to how it holds up over time. Does it crumble or shift? I know you can put in rebar rods to stabilize it; do you need to do this if your wall is only two or three bags high? Thank you!

  5 answers
  • Valleycat1 Valleycat1 on Feb 15, 2019

    Yes I would stabilize with some kind of vertical support. Two or three courses high does not provide a lot of weight to counteract horizontal forces.

    • Bbunny42 Bbunny42 on Feb 16, 2019

      I just need it to divert water to the street when it rains and 3 bags high is an estimate, but I'm hoping that will work. May take more.

  • Betsy Betsy on Feb 15, 2019

    Hi Bbunny42: Here are a couple of sites I found that might be helpful:


    https://www.ehow.com/how_5636376_build-concrete-sack-walls.html


    This is a pdf, so when you click on it, it comes up with another file. It has some really interesting information in there, it's worth the read.


    https://www.quikrete.com/pdfs/projects/riprapprojectsanderosioncontrol.pdf


    Good luck.



  • Deb K Deb K on Feb 16, 2019

    Here is a test I found for you to see

    https://www.youtube.com/watch?v=UOpQdNfxdcI

  • Betsy Betsy on Feb 17, 2019

    Hi Bbunny42 I was talking to a friend who knows a bit about these things and he said that even though it's an easy fix and will look good for a couple of years, maybe, the cement isn't mixed properly and will, eventually, start to crumble and fall apart and look just awful. Then, and this is the part that made me gasp, you will have the job of taking it all down and just where do you dispose of all of that old, heavy, crumbling, concrete? He also said that in the long run, even though it is a bit more expensive, you should either get blocks or bricks specifically for retaining walls. If you get tired of how they look, they are easier to get rid of, people will come and get them. Just another slant on your problem. Good luck

  • Betsy Betsy on Feb 17, 2019

    Hi Bbunny42: I was talking to a friend who knows a bit about these things and he said that even though it's an easy fix and will look good for a couple of years, maybe, the cement isn't mixed properly and will, eventually, start to crumble and fall apart and look just awful. Then, and this is the part that made me gasp, you will have the job of taking it all down and just where do you dispose of all of that old, heavy, crumbling, concrete? He also said that in the long run, even though it is a bit more expensive, you should either get blocks or bricks specifically for retaining walls. If you get tired of how they look, they are easier to get rid of, people will come and get them. Just another slant on your problem. Good luck

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