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How to Make AirCrete

Posted by Jessica Richardson on

AirCrete is easy to work with, easy to make, and inexpensive. With just basic skills, you can make AirCrete and get started on building dome homes. 

How To Make AirCrete, The Basic Steps.

The truth is that making AirCrete is similar to baking just about anything in the kitchen. Use proper measurements and you can surely produce consistent results. In other words, be scientific and don't cut corners, this is used to build a home after all. 

Disclaimer: This is an informative article and any building of a home you do is at your own risk. The best AirCrete recipes can and will be argued about by others so do your own due diligence and test the methods. There is a lot to understand when it comes to building a dwelling. AirCrete is no different, it can be done with anything from dish soap, foaming agents and even adding fibers for strength. AirCrete can be for DIY homes or it can even build large homes by professional construction companies. It comes in all different forms, this article covers your basic DIY low cost AirCrete method. 

Basic supplies

  • Kitchen or Postal Scale.
  • Concrete Mixer.
  • 50 Gallon Drum.
  • Molds for Your Bricks or Frames
  • 94lb bag of Concrete 
  • 2 Cups of Dawn Dish Soap  (You can test out other soaps but it must foam a lot)
  • Plenty of Water
  • 90psi Air Compressor, At Least.
  • Continuous Foam Generator ( an example is The Little Dragon )

Step 1 - Get prepared! The quality of your foam is very important, you want to find a soap that really foams up by itself. Any major degreaser soap like Dawn will be the best choice. However, some may work better than others, you can test out different ones in water by agitating it first. But the real test will come when you use your foam generator.

Step 2 - Using a bucket and a 40:1 ratio, such as 5 gallons of water to two cups of your chosen foaming agent (dawn soap). Mix these together in a large bucket.

Step 3 - Using your foam generator (Little Dragon), which is pumped using an Air Compressor at a minimum of 90psi. Connect this to your foam mixture and prime your pump till a very thick shaving cream type foam is coming out. The consistency of this foam is one of the most important things in the quality of your final product. According to Domegaia, your foam, in the measurement of a quart should weigh about 3oz excluding the container. The video below gives a good visual of this. 

Step 4 - When you are satisfied with the quality of your foam and can reproduce it well later on. Use the 50 gallon drum to mix your concrete, a 94lb bag of cement will be mixed with 6 gallons of water. Measuring your water out first, the cement is best added slowly while using your concrete mixer, the motor can get strained if you dump it in all at once. Be sure to scrape the sides and get a good mix completed before the next step. It should be a smooth nice concrete mix without clumps before the next steps

Step 5 - Your large mixer should be set up properly to inject the foam into the mix while using the foam generator and concrete mixer at the same time. Your concrete mixer with the foam generator tube should be attached to the bottom of the mixer. Start injecting the foam into your concrete mix, put the mixer on high and keep the blade at the bottom of the drum. Your mix will slowly rise as the foam injects into the concrete. When the mix gets to about 43 gallons, the AirCrete will be ready, if using a 50 gallon drum, this will be just short of hitting the top. 

Step 6 - From there, you can pour the mix into any molds you have made. Such as molds to make bricks, slabs or any forms you have chosen. You can get very creative with molds, so do a little research into that if you haven't already. It's very important that the AirCrete is completely cured before removing the mold and using the final product. Weather conditions will effect your dry times.

 

Great Video on the process of Making AirCrete



Another Quick Video on Making AirCrete 

 

On Domegaia you can get building plans, classes all over world and all the tools you need. The homes here are quite impressive in style and surely would rent out. Plus you can build a basic one for under $10k. 

LandZero

Here are some critical pointers. 

1. Make sure to weather seal the home if you have built it out of AirCrete, this means inside and out. 

2. If you would like fortified AirCrete blocks, you can use fibers to add to the mix. Also some professional foaming agents which may be better than dish soap can be used. 

3. Regular concrete is recommended for the foundation when you are building. 

4. Take a class at Domegaia, this would give you hands on experience and expert help. It comes with building plans and email updates so it's well worth it. You will build a dome home in small groups, plus they do this all over the world to make it fun. Places like Hawaii, Thailand, Costa Rica, Mexico and so much more. They can provide accommodations and the price is quite reasonable. Having this help while doing things hands on will give you a major advantage before starting your own project. 

5. Depending on your country, state or county. Check with the building  officials before you begin. Some are completely clueless about AirCrete, so make your decision on the plan after talking with them. The last thing you want is for them to tell you it's unfit for living.

6. Unless you know electrical and plumbing, get some help in these categories from a professional. 

7. Get super creative, think about adding stones, glass wine bottles, AirCrete landscaping, cool shaped windows, round door frames, AirCrete counters, seats made with AirCrete and so much more. You can pump the foam into structured frames of all sorts, so imagine the possibilities. 

8. Learn about maintaining your structure, you don't want any weather damage. Also know the limitations of where you are living, like heavy rain or major natural disasters of the area.

Overall, if you can buy land for $10k and build with AirCrete for $10k you are styling. The more unique the building and appeal to the area will open up other options. You may find yourself renting these out for some cash on AirBnb. Some of the most popular rentals on AirBnb are the unique homes that give someone a different experience. If you can, take pictures and video of your progress and post it online. It is a small community and videos of projects really motivate us. 

 

Please do us a huge favor and rate the article below. We wish you the best in your building goals. For more on AirCrete visit our article about Everything to Know about AirCrete.

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