UC Davis designed a CoolBot cool room (excellent project for homesteaders!) using rice hull concrete for insulation and a CoolBot controller to keep farm produce fresher. The cool room paid for itself the first year and even helped make a good profit for local farmers. The rice hull concrete was poured into forms to make insulating wall boards. This blog post will briefly summarize the outcome of their project. The full report is available online for free and can be found by searching for the title of the report: Cool room insulation – UC Davis D-Lab
“Announcing the 2nd Rice-Husk-Bag Workshop! This will take place in northern Thailand, November 2015. We will learn how to build walls with bags filled with rice husks (hulls), benches with earthbags, put in doors and windows, cover the walls with a mud, sand and rice husk plaster, and add decorative bottle designs.
“Slightly before my 60th birthday I realised I had made no plans for my old age, and did not have any money put aside for it either. Thailand was my home, but no government pensions available, so what could I do that I would enjoy, which would also bring in a bit of money to live by. I decided to buy some land with my last few pennies, and go to the UK for a few years and earn some money, and save every penny I could. I bought a fantastic piece of land in Chiang Dao, northern Thailand, and spent several years in the UK saving like mad.
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
How would you build earthbag walls up to 12 feet above ground on pier footings? A reader asked me this recently. Hmm. Moving tons of earth up that high would be difficult, and that got me thinking of alternatives. One solution I came up with uses an insulation blowing machine and hand-held bag sewing machine … Read more