Hyperadobe was coined by Fernando Pacheco of EcoOca in Brazil. His technique is inspired by Cal-Earth’s Superadobe but modified to be even more ecologically friendly. The idea is to use knit raschel tubing rather than the traditional woven polypropylene. This can reduce the bag material by approximately half and is also much less expensive. The raschel tubing is what you might find large bags of onions or potatoes stored in. If you can use the bags, rather than tubing, they could probably be sourced for free as these are normally thrown out. The idea is that when tamped, the earthen mix can partially come through the loose knit and can bond with the layer below. If the technique works as planned it could remove the need for the barbed wire between each layer for reinforcement. It sounds very promising but I wonder if there are limitations to building quickly with this technique since the earth can ooze out under weight. For more info, see this article at Earth Bag Building. According to users on their blog, Maurice at bagsupplies.ca offers rolls of knit raschel 1400 meters long for $237.00 (Canadian) plus shipping.

(image via naturalbuildingblog.com)

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2 Responses to Hyperadobe

  1. Lucas Balthar says:

    With the traditional HPDE bags, I wonder if it would not be possible to use (free) old cut up inner tubes to provide friction between layers rather than barbed wire?

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