In a process similar to creating Portland cement, MgO powder is combined with other ingredients and water to form a cementitious slurry. This slurry is then embedded with layers of glass fiber mesh, formed and allowed to cure. Once fully cured, the result is a hardened magnesium oxide cement panel.
I presume it's just a matter of setting up expansion strips or pour forms to pour the slurry into, and then let it set up.
Not sure if MgO powder is available unless it's bought in bulk like a panel manufacturer would need.
The pre-skinning idea was a success!
It feels alot like drywall. I can probably pull it off of the block because of the stremgth of the clothe material, but it seems glued on pretty well. Skinning curved surfaces like the mushrooms is a real "learning curve" !!! LOL
This experiment was kind of a proof of concept. A form can be successfully preskinned at the time of aircrete pour, AND it released from the acrylic mold easily,. AND spraying the acrylic with cooking oil made plastc wrap unnecessary. However, I did use plastic wrap between the form and the clothe skin,, but I dont think its required. My next block will be plastic wrap only on the bottom..It helps sealing the bottom from blowout leakage. along with the weatherstripping tape...
@Zander There is a dome cost estimator. It approximates the material cost. It estimates a dome that is 20ft in diameter, 6 inch walls costs around 3100 USD. It's not terribly expensive. I drew up a 1900sqft dome house that I estimate costs 30,000 USD. That includes foundation, shell, finishing, reinforcement, and utilities. That is, if you build it yourself. FYI, 20ft diameter dome is about 315sqft.
Yes the treatment is very cheap. Also you can make it yourself at home. You don't have to buy it in small 4-8 oz bottles for maybe 20+- bucks.
It is made from 80% Chlorine Chlorite and 4% HCL. Go to "https://www.miracleofwater.com/" and look thru the site pages to learn. There are videos on exactly how to make it. The ingredients seem expensive at first glance but the end product cost you pennies. It does way more than treat water as you will learn but I can not say here due to very aggressive censorship of this subject.
As to water there being cheap have you added in the cost of your medications and doctor visits?
At any rate it is wise to learn how to stay healthy. Nobody will care about it like you will. They look to the income you have to live with it.
Wouldn't the 3 layers of different materials have problems staying bonded to each other after the heat treatment? I would think each layer would expand and contract differently, causing separation. But I've been wrong before LOL
Bevsre has some points. There needs to be some protection for people who want to build their own houses. I believe there needs to be a set of codes for dome homes, but it should only apply to safety and environment. Things of that nature.
@KnowItAllTeen You bring up a rather controversial issue among dome designers. It seems to come down to form vs function. Engineering will always choose the cylindrical base; architecture will always demand the untainted sphere.
Domegaia happens to be led by an architect therefore their domes are purely spherical, always, no exception. My friend is a retired engineer - his dome uses the cylindrical base.
I have yet to hear of a pure sphere aircrete dome developing cracks at the equator. But that is not to say that I won't at somepoint in the future.
@gelucske Hi gelucske, have you succesfully built your dome ? I also live in Belgium, I'm quite new to this and don't have any experience. I'm gathering info ( would love to participate in a project ) and looking for builders. Your feedback would be nice
I am a English professional Permaculture designer & dome builder based in Spain. I would like to share with you all my Permaculture blog that has many posts on topics related to Permaculture design.
Permaculture design allows us to design our land in a way that meets human needs whist respecting nature. In my experience combining dome building with Permaculture design is the way to self sufficiency & freedom. Here is a link to my blog: http://www.holisticprogressiondesigns.com/blog
I have built four dome homes in Spain & Turkey. You can see photos in the showcase section, on my profile or website: http://www.holisticprogressiondesigns.com/domes.html
Best wishes to one & all.
I am doing some research to see what might be out there by others types of dome building. I came across a statement from an engineer and don’t have the exact quote
But essentially the dome has been around fo a long time and has strength no other structure has ! I think some exceptions were made in building code for the dome building because of this. I have yet gone to the county to start my application for the permits yet. One other stop prior to that was a local engineering/architecture firm for some consulting. Looking for some others with experience with the permitting and codes issues. I don’t want to work and then be told to take it down . Been there before and it’s no fun. It was a remodel in a county in Oregon.
@greenfire Thanks for caring and volunteering. I hope your offer is still valid. You are now appointed as a moderator. I have been off-grid for three years and I agree that this forum has degraded considerably during that time. Let's whip this place back into shape.