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Simple but lasting subterranean animal barrier - ferrocement?

 
Posts: 17
Location: Senegal, ~600mm rain, 9 mo. dry season
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I am working on in-ground, outdoor, colony-style rabbit systems for the sahel. One of the primary challenges is keeping the rabbits from tunneling out. Bricks is an obvious solution, but end up being fairly expensive (~$100 for a 2x4m rectangle at 1 m depth). I'm looking for alternative ideas that would be cheaper, but wouldn't rust or rot away in the first few years. Structural integrity is unimportant - it must only be able to withstand rabbit burrowing.

Any ideas? A thin ferrocement is the best I've come up with so far.

Available local materials include:

  • sand
    clay
    laterite/lateritic rock
    cement
    plastic rice bags
    chicken wire and similar wire mesh


  • Wood and steel are available but expensive. We have a 9 month dry season so a water-based barrier is out of the question.

    Thanks! (And sorry if this is the wrong forum for this question!)
     
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    Posts: 966
    Location: Ohio, USA
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    Sounds like you have options! I would think cement reinforced with chicken wire would work. So would cemented rock. If you have glass bottles, you can use those as bricks too.
     
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    Noah Elhardt wrote:I am working on in-ground, outdoor, colony-style rabbit systems for the sahel. One of the primary challenges is keeping the rabbits from tunneling out. Bricks is an obvious solution, but end up being fairly expensive (~$100 for a 2x4m rectangle at 1 m depth). I'm looking for alternative ideas that would be cheaper, but wouldn't rust or rot away in the first few years. Structural integrity is unimportant - it must only be able to withstand rabbit burrowing.

    Any ideas? A thin ferrocement is the best I've come up with so far....

    Use clay to hold a wall of glass bottle together, and reinforce with chicken wire?

     
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