What's the Latest?
Earthbag is in the news for surviving earthquakes in Nepal that flattened surrounding villages. Dozens of builders are still being trained each week. And ngo leaders are discussing earthbag wording to be included in building code.
But they may need a little more structural information. Engineers can offer critical help right now!
See the latest refinements to seismic earthbag techniques, including base isolation and pinned buttresses, in the Appendix to the January test report, Stronger EB Corners.

Check out this New Zealand news video
We've been saying for years that earthbag's flexible intrinsic barbed wire reinforcement has great potential. Now others are talking as well.
All sorts of buildings by all sorts of groups survived. Small house sized and school sized. Domes and vertical wall buildings. Well built and some not-so-well built.
We thank God that none of these buildings hurt anyone and are offering shelter now when needs are great.
No earthbag structure was at a quake epicenter. They suffered moderate quake motion and could receive much worse in the future.
Let's help earthbag become all it can be, and save lives worldwide in the coming years!

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Build Simple News 2015

Cisterns for Haiti

BSI has been consulting with engineering students at Harding University about cistern designs for dry northern Haiti. Recent droughts and the everpresent cholera in the groundwater make saving rainwater important. BSI hopes to test some narrow wall solid contained earth (think 8" thick in strong mesh tubes) and/ or some double channel mixed sand/ earth fill for 5' high cistern walls.

Right: Straw wattle reinforced with rebar on a 1.2 m high earthbag base wall.

Come Learn while you Volunteer!

Starting spring 2016 there are intense needs for local Albuquerque and Santa Fe students and adults to help by building, testing, organizing volunteers, analysizing structures, photography, video, blogging...

Interns volunteer 2 weeks or more of labor and get in-depth training free. Other volunteers can work on-site for a few hours or from home.

Any help makes you a BSI hero!

Answers Needed for Nepal: Tilt tests, shake tests, cyclic-dynamic!

Now that Nepal's quake gave us positive results, it's time to see just how much earthbag can stand in vibration!
Dartmouth engineering student Awais Malik's testing showed that 2 narrow corner buttresses or one massive corner pier reduce  earthbag wall deflection under vibration by 25% and 33% respectively. More information is online in his thesis, Structural Analysis of Earth-Bag Systems.

A New Zealand engineer recommends we do a tilt test, and it should start this spring.
Even a modest shake table test of a stacks of solid mesh earthbags and modular contained earth in bags can tell us a lot!
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