We’re experimenting with rice hulls and clay to make lightweight building blocks. We’re using 25% rice hulls on our first test block. This is our first test block with a rice hull/clay mixture. This is not the most efficient way to mix it, of course, but we’re just doing small samples. Normally you’d use a … Read more
Kelly Hart and I have been following the The Year of Mud cob house blog for about 2-3 years. Ziggy, the builder and author of the blog, learned the hard way that cob (actually, earth building in general) is not a good choice in cold climates. Kelly has been warning people for years at GreenHomeBuilding.com … Read more
This Instructable describes an innovative way to build walls using bamboo or wood saplings and bags of insulation. We’ll be using bamboo for this Instructable since it is rapidly renewable, low cost and readily available in many parts of the world. Let’s start with some background information to better understand what is involved. People often … Read more
I’m real happy with how the sample vetiver/clay block and earthbag turned out. This follow-up report summarizes some of the pros and cons. You can read the first report here. The block dried in a few days, but the mix in the bag was slow drying (it took about 2-3 times longer to dry) and … Read more
“Three long months… 2,000 sandbags, 4,000 nails for closing the bags, 90 cubic yards of lava rock, 4 miles of barbed wire, -40 lbs. of combined weight-loss & 37 cans of Cattle Drive Chili… we have completed construction of our dome home.” Halcyon Times blog Note: They used scoria (lava rock) as fill material.
Patti Stouter has been running a series of very interesting, even surprising, experiments with various materials that might be used to insulate earthbag walls. She has focused her attention on light-weight natural or recycled materials that can be bound together with a clay slip. She devised a test apparatus to measure how well the materials … Read more