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Industrial Earthbag Projects — 7 Comments

  1. I love to see civil engineers confident to use earthbag. I’ll have to look through Geosynthetics and find out exactly what sort of soil in what climate with what finish surface they used.
    Civil engineers know that earth in poly textiles can flex and make cheaper stronger walls than concrete. Now for architects to apply this.

    • Yes, it may take an engineer who specializes in this type of work to pave the way. We know it works. It just takes an expert in the field to get it code approved.

  2. When you say foundations, are you referring to the floor? I don’t believe you’re talking about the walls. If you are talking about the floor slab then what would go on top of it? Correct me if I’ve got this all mixed up. You covered one time about using scoria and sand and then setting tile on top of that then, sweeping sand in between the cracks etc. to secure each tile. Is this what you had in mind? Forgive me if I’m way off base.

  3. Here are some previous blog posts about earthbag and gravel bag foundations:
    Earthbag Foundations
    https://naturalbuildingblog.siterubix.com/earthbag-foundations/

    Earthbag/Stone Foundations
    https://naturalbuildingblog.siterubix.com/earthbagstone-foundations/

    Another Earthbag Foundation Method
    https://naturalbuildingblog.siterubix.com/another-earthbag-foundation-method/

    Seismic Resistant Gravel Bag Foundations
    https://naturalbuildingblog.siterubix.com/seismic-resistant-gravel-bag-foundations/

    Insulated Earthbag Foundations
    http://www.instructables.com/id/Insulated-Earthbag-Foundations-for-Yurts/

    Straw Bale Roundhouse in Taos, NM
    https://naturalbuildingblog.siterubix.com/straw-bale-roundhouse-in-taos-nm/

    The subject is also covered in detail in my Earthbag Building Guide and DVD: https://naturalbuildingblog.siterubix.com/owens-book-dvd/

    • You can get code approval for rammed tire foundations, but I don’t know if gravel bag foundations have ever been approved (except in really lax areas). Kelly and I have been promoting gravel bag foundations for years and I would love to see a licensed engineer come up with an open source design everyone could use or learn from. This includes using regular gravel for most applications and porous lava rock for insulated foundations in cold climates.

      Not only are earthbag/gravel bag foundations super low cost and simple to build, another key advantage is avoiding/minimizing the use of concrete for environmental reasons. Also, owner-builders may not have the skill to pour concrete foundations. Placing gravel bags is about as simple as it gets, and the work goes quite fast.

      Geosynthetics Magazine is in contact with all the leading companies who work in the field and so maybe they’ll know someone who can help. It’s worth a try. If they can design million dollar industrial projects, think how easy it would be to come up with a generic house foundation.

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