First Earthbag Shake Table Tests Create a Computer Model

Results of earthbag wall shake table test at Dartmouth University.
Results of earthbag wall shake table test at Dartmouth University.

“How much reinforcement do straight wall earthbag buildings need for earthquakes?
Engineers can’t tell without test results. Until this year no one has tested earthbag on a shake table, since full-size testing could cost between $10,000 and $15,000 USD.

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Proctor Soil Compaction Test

The Proctor Test is used to determine the optimum moisture content in soil, and can help create stronger earthbag and rammed earth structures.
The Proctor Test is used to determine the optimum moisture content in soil, and can help create stronger earthbag and rammed earth structures.

“The Standard Proctor Test is a laboratory test used to determine the optimum water for a given compaction energy, for a given soil. The graph illustrates the results obtained from a Standard Proctor test.

The Proctor compaction test is a laboratory method of experimentally determining the optimal moisture content at which a given soil type will become most dense and achieve its maximum dry density. (Compaction is the process by which the bulk density of an aggregate of matter is increased by driving out air.) The term Proctor is in honor of R. R. Proctor, who in 1933 showed that the dry density of a soil for a given compactive effort depends on the amount of water the soil contains during soil compaction.

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Shear Strength Wall Test Report

Test description: Shear strength of plastered 4′ x 4’/ 1.2 x 1.2 m bag wall (15″ / 38 cm thick) of weak cohesive soil with barbed wire; Materials: solid poly bags, tamped subsoils of silt and clay, lime and earthen plaster Abstract: Earthbag is a growing sustainable building technique that is increasingly desired in the … Read more

All the Best Earthbag Content

For several years, Kelly and I have been filtering all the best earthbag content from the Web, writing extensively on all aspects of earthbag building and organizing the information for readers. There’s now an enormous amount of information available – so much that it’s difficult to keep up with everything. That’s one reason why our … Read more

My Top 10 Most Popular YouTube Videos

If a picture is worth 1,000 words, then a video is worth… Maybe that’s why my NaturalHouse YouTube channel is so popular. 2. Finished Earthbag Roundhouse 3. Cement Plastering 4. Building an Earthbag Dome 5. Hardness Test 6. Enviro Dome Fly-through 7. $300 Earthbag House 8. How to Make Square Corners 9. Bag Size 10. … Read more