@upwinger Ubuntu is also a movement, not just an flavor of operating system. Opens course does work. However, in something like business it requires an aggressive effort and the highest of quality in your product or service to be prosperous. Control, exclusion, and laws have been the only way public companies can actually stay alive and be prosperous. The old paradigm does not die easy. I mean who doesn't like easy profit?
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RE: tutorial video for little dragon construction
RE: Average Cost Per Sqft
3 gallons of Dresses foam agent
Can you pleas describe or provide a link to this "Dresses foam agent"? I can't find it.
There are also other almost identical foaming agents available at local farm stores.
They are used for "row marking" where the tractor squirts droplets of foam so they can mark where they went.
RE: Average Cost Per Sqft
120 Square feet done
(120/3.1428)Square Root=radius 6.18. A 12.36 foot dome
The cost for foundation and done would be $835 ish dollars if you make it 12 foot at 4.5 inch thick walls.
44 bags of cement
3 gallons of Drexel foam agent
1 roll of soft polyester.
RE: Average Cost Per Sqft
@Kwagga 42 KG of cement makes .17 cubic meter of AirCrete.
There is some data required to make a metric version:
What price & volume of foaming agent is used there.
Weight & price of Portland cement bags.
Dimension and cost of soft poly reinforcing fabric.
RE: La Ventana
@fire Earthbag construction is so labor intensive but not as labor intensive as packing tires. I personally am going with the Monolithic Dome airforms. You could make your own airforms I have not done so myself, but i visited a home in CO where the home owners made the airforms. On there website they sell a book on how to make airforms.
Here is a video I made of the home i visited and I have a link in the description to the website with the book.
RE: Need help in buying an air compressor
This is the best air compressor company to buy one from.
You have a lot of different size air compressor to pick from.
Make sure you can get free shipping from where ever you order from.
This is a short video I did on my air compressor setup.
RE: aircrete vs. ferrocement
You are right in what you are saying. You should try to build according to your code if you are building in a code requirement area, which is virtually most of the USA now. Regardless what other people might try to imply, testing is neither difficult or expensive. You can test the strenght of your aircrete or regular concrete and is around maybe 100 dollars for sampling, which includes about 5 cylinder samples. When I did mine, they were around 75 per 5 cylinder sample, and that included the technician going to the site and gathering the sample before the pour, and doing a test ON the concrete that was going to be poured to predict if it would possibly pass the PSI of concrete ordered. You could collect your own samples, as the cylinders are readily available, and then bring them to any engineering testing firm and that would save you money. Aircrete, or what they want to call aircrete in this page is in reality cellular concrete. This have been discussed before in this forum. Real aircrete expansion is by a chemical ( using aluminum powders) mean and then you need an autoclave to hot cure it for hours, which give ultimate tensile strenght. Domegaia concrete is not commercial aircrete but cellular concrete. Its strenght in compression is good, but its tensile strenght not so much, so you would need something to give that strenght. It could be rebar , metal lath or even better basalt rebar, which is expensive but is mineral and have higher tensile strenght than metal. You could also consider a thin layer of magnesium concrete, which is much stronger than any other concrete and can be laid out thin, but it is expensive, and then over that layer put basalt rebar and then aircrete. Many ways to do it, but the cellular concrete by itself is not too strong by itself for a building that needs coding. Minimum compression strengh of a concrete building in most codes is 1500 psi for walls and 2500 for a concrete rebar ceiling. PSI in the hundreds for a building is not much different than mortered foam blocks. The ideal would be a middle point, using the magnesium concrete and basalt rebar to hold the tensile strengh, and the celular concrete to give insulation. There is also basalt fiber that is sold in mats or just the fibers. That could also be added to celular concrete for even more insulation. Even another solution would be to buy a concrete inflatable dome cheap in alibaba from a chinese suppliers. They use them for fairs and displays. Then use that filled with air as a holding structure, and using regular concrete by hand in a thin layer, or maybe shotcrete or gunite and rebar. This will also give you a stronger shell that can be worked over with celular concrete. Then at the end good coating of sealing paint to make it weatherproof. Whichever way you choose good luck.