*NEW* Aircrete High Performance Foam Generator DIY Build -- All air powered Design!

NEW Aircrete High Performance Foam Generator DIY Build -- All air powered Design!

Рет қаралды 22,513

3 жыл бұрын

In This video I will show you how I built a high performance foam generator for making Aircrete in large batches. This new design is all powered by air and can be used offgrid and puts out about 5 cubic feet of foam per minute! Here is a link to the schematic of the design so you can download it. drive.google.com/file/d/1N-33...
Here is a link to my video showing the new high performance foam wand build that matches this generator. • *New Design* DIY Aircr...
And here is a link to all of my Aircrete videos. • Aircrete videos
Amazon links to the parts I used to build this foam generator
double diaphragm pump
www.amazon.com/gp/product/B07...
Air Regulator 150 psi- 2
www.amazon.com/gp/product/B00...
5/8” ID nylon hose -at least 20 feet of it
www.amazon.com/gp/product/B07...
Bulkhead fitting for air in
www.amazon.com/gp/product/B07...
Bulkhead fitting for water hoses- 2
www.amazon.com/gp/product/B01...
5/8” hose barb fitting 1/2npt - 4
www.amazon.com/gp/product/B00...
5/8 hose barbfor garden hose, female -3
www.amazon.com/gp/product/B00...
stainless ball valve 3/8 NPT - 2 of these
www.amazon.com/gp/product/B07...
Stainless ball valve 1/2” NPT - 1 of these
www.amazon.com/gp/product/B07...
SAE #10 hose clamps
www.amazon.com/gp/product/B00...
3/8 NPT thread push to lock fittings - 8
www.amazon.com/gp/product/B07...
1/2” push connect tube for air
www.amazon.com/gp/product/B00...
1/2” NPT T fitting
www.amazon.com/gp/product/B01...
3/8” npt T fitting
www.amazon.com/gp/product/B07...
1/4 to 3/8 npt adapter - you will need 3
www.amazon.com/gp/product/B08...
1/4 NPT nipple --6
www.amazon.com/gp/product/B07...
3/8 NPT nipple - 1
www.amazon.com/gp/product/B00...
1/2 NPT nipple - 2
www.amazon.com/gp/product/B07...
1/2 to 3/8 npt reducer
www.amazon.com/gp/product/B07...
24” aluminum truck box
www.amazon.com/gp/product/B01...

Пікірлер: 302

@PranaTech 3 жыл бұрын

List of parts to build this generator build are now in the description.😀

@ronnerichter8216 3 жыл бұрын

Hi Don, Where does one find the "description" for the list of parts?

@robertweekley5926 3 жыл бұрын

@@ronnerichter8216 - Click the Down Arrow Beside the Title (Triangle - like this "^" but upside down) if on mobile devices! (Like I'm currently watching on!)

@740new 3 жыл бұрын

It is fantastic! Thank you so much for sharing this video!

@nobreighner 3 жыл бұрын

Just filled with really good info - thanks!

@PranaTech 3 жыл бұрын

Thank you my friend! That means a lot coming from you! I’ve always enjoyed your videos and information!🙏😀👍

@mellis966 9 ай бұрын

This is an amazing design. Thanks for sharing. You might want to put some rock wool insulation inside your box. Some concrete board would also help dampen the noise. Super Project! one of the best on the net!

@PranaTech 9 ай бұрын

Thank you again and those are some great ideas! 👍😊

@timmcwilliams8024 3 жыл бұрын

Thank you for taking the time to make this video!!

@PranaTech 3 жыл бұрын

Thank you Tim for your nice comment!😁👍

@koontzman123 3 жыл бұрын

Thank you for putting out this kind of helpful content.

@PranaTech 3 жыл бұрын

Hi Steve! Thank you for your kind words! I really appreciate that! My goal is to show people how to build tools and a home that is affordable and can be done without putting ourselves in debt for most of our lives. Glad you enjoyed my video! Thanks 🙏😀Don

@healthfullivingify 3 жыл бұрын

Really nice job, Don, Thanks.

@PranaTech 3 жыл бұрын

Hi Johnny! Thanks for your kind words my friend. I really appreciate it! 🙏😊

@josephwilson9444 3 жыл бұрын

This is a superb design. Thank you for sharing your effective, elegant and robust foam generator.

@PranaTech 3 жыл бұрын

Thank you so much Joseph! 😁🙏❣️

@isenbergj 3 жыл бұрын

Excellent... That is a really nice unit...

@PranaTech 3 жыл бұрын

Thanks Jimmy! I appreciate that!🙏😀

@aguariva 3 жыл бұрын

Congratulations, my friend so good quality in your project and job. Thank you. A big hug from Aguascalientes, Mexico

@PranaTech 3 жыл бұрын

Gracias mi amigo! I’m moving to San Pancho this summer so we won’t be too far apart! México es tan hermoso! 😁🙏

@markspc1 2 жыл бұрын

Great video Don. Thank you.

@PranaTech 2 жыл бұрын

Thank you! 😊🙏

@garyweber6413 3 жыл бұрын

Great work thanks for sharing,Im going to try out the vermillion foam solution.

@PranaTech 3 жыл бұрын

It’s really a great product and the only one I’ve found that has been proven through certified ASTM testing for durable aerated concrete able to withstand pumping over distances without breaking down.😀👍

@finnermusic Жыл бұрын

You have come up with an intuitive, well engineered design. Well done, sir. Well done!

@PranaTech Жыл бұрын

Thank you! I really appreciate your kind comments! 😊🙏

@edwinbickel 3 жыл бұрын

Very nice job!👍

@PranaTech 3 жыл бұрын

Thanks Edwin!😀

@arielmoyron2491 3 жыл бұрын

Congratulations... very good work.. Saludos desde colima

@PranaTech 3 жыл бұрын

Gracias mi amigo! 😎

@paulwood7529 3 жыл бұрын

This is amazing! so cool, I'm going to build one, I need to find the won you made, thank you so much. Paul

@PranaTech 3 жыл бұрын

Hi Paul! Let me know if you have any questions when you get to building one. 😀👍Don

@paulwood7529 3 жыл бұрын

Thank you so much, this is so cool.

@PranaTech 3 жыл бұрын

Thanks Paul!😀

@nicholasjones9163 3 жыл бұрын

Awesome, been looking for this video for 6 months now. Finally someone who already did the hard work to come up with a cheap but bigger rate production unit with specs, 😁

@PranaTech 3 жыл бұрын

Hi Nicholas, glad you found my video helpful! You can enlarge this design as much as you want by using a larger diaphragm pump. You will obviously need more CFM of air to match the output though. I am currently building a foam generator that is twice the output of this one but I will need two compressors to keep up with the volume of air that it will need. 👍😀

@dustinabc 3 жыл бұрын

@@PranaTech i've wondered how it would work to make a big batch in a truck. I wonder if the design for mixing the cement in the truck's mixer would be effective at integrating foam into the cement.

@PranaTech 3 жыл бұрын

Hi Dustin, yes, the large companies that pump Aircrete, they dose a full truck all the time and then pour it into the pump. 👍😀

@wecan9109 2 жыл бұрын

Thank u so much!

@PranaTech 2 жыл бұрын

You are very welcome 😊👍

@gullinvarg 5 ай бұрын

Thanks!

@PranaTech 5 ай бұрын

Thank you very much my friend! 🙏👍😊

@casade2831 2 жыл бұрын

I like this one better than the first one

@heronlyneed 3 жыл бұрын

Very helpful for people who are fun of DIY project. I will try to follow along and build one. That is if the part list and schematic diagram are really available for free.

@Downirvana 3 жыл бұрын

Hey Don first of all I want to say that I am so grateful to have found your channel! My wife and I are living in Belize and are working on building this exact generator! We ordered all the parts from Amazon and even had to order some from the US. However I do not have any plumbing experience and was wondering if you would be able to show us a closeup of this generator, how the tubes connect and such. If this is at all possible it would be very appreciated!! Thanks!!!

@PranaTech 3 жыл бұрын

Hi Jacob! Glad to see someone building one of these! 👍 If you send me an email at pranateq@gmail.com I will send you whatever photos you need. One downer to this is that I sold that generator to a friend of mine in California so I’ll have to see what I have for photos from my build. But on the upside, I’m in the middle of building an even bigger model of that design for myself right now. I’m sure I can help you though as you go along if you have any questions or run into an issue. Belize is on my wife’s and my short list of places to live when our kids graduate college in a few years. Talk to you soon. 😀👍

@davidlwhitesidearmy 3 жыл бұрын

Super job

@PranaTech 3 жыл бұрын

Thank you David! I appreciate it 👍😀🙏

@davidlwhitesidearmy 3 жыл бұрын

@@PranaTech if you wanted to add strength to I was told sand helps I know you could add rebar or things like that have you experienced or done any tests like that?

@errolgachette3133 2 жыл бұрын

I like it

@PranaTech 2 жыл бұрын

Thanks!😊👍

@tapanbagchi2763 3 жыл бұрын

Great

@sherriemyers5429 3 жыл бұрын

Thank you ! I love how professional your videos are and the documentation you provide for your designs. What do you think of using aircrete for making pavers?

@PranaTech 3 жыл бұрын

Hi Sherrie! Thank you for your kind comment! You could use Aircrete for pavers and I would suggest adding some sand to make them a little more durable on the surface. 😁👍Don

@melchoralcantara3816 3 жыл бұрын

I must have seen most of your videos. That is an amazing foam generator machine!! The off-grid type you are planning to build is one that is something we can use here in the Philippines. I wonder if you would sell. I can request/beg my brother to get one from you that he can send to me here in thePhilippines.

@randallstovall5728 3 жыл бұрын

I think having the controls on the exterior would be nice.

@joeeasygo Жыл бұрын

1000 love it""""

@PranaTech Жыл бұрын

Thank you Joe! 👍😊🙏

@jersellis 3 жыл бұрын

Don, awesome vids my man!! I am a little leary on the AODD pump you have listed on amazon. I know it is one of the least expensive ones out there, my question is how well has your pump held up since you have been using it? Thanks again for the videos.

@PranaTech 3 жыл бұрын

Hey thanks! The pump has held up great. If you read the reviews on Amazon you get some bad reviews from people that had the pump quit after a few minutes of use and this actually did happen to mine. I pulled the bottom plug on the air alternating piston and the plastic piston had gotten stuck. I dislodged it with a light tap and then lubed it up with some Teflon spray lube and reassembled it and it has worked great ever since. I think the tolerances were just a little too tight until it got broken in. This was a new design for me so I didn’t want to sink a bunch of money into this if it didn’t work out. If I was going to use this generator commercially I would probably invest in a sandpiper or equivalent brand, but for the average guy doing this for himself, these pumps are plenty durable.😁👍

@foodsecuritystructurescana4440 2 жыл бұрын

Love your videos and very detailed descriptions. Have built your high performance wand and working on this improved generator. Can you share with us the approx. psi you are regulating the wand air supply and the air diaphragm pump supply set at?

@PranaTech 2 жыл бұрын

Hi there, the wand air pressure is usually set at 60-75 psi and the pump supply around 80-85psi. I then adjust as needed until I get good dense creamy foam. This new generator works great. The only drawback is because you need air for the pump operation and the air line for foam, you need a decent size compressor. I’m running it on my shop compressor that puts out about 10cfm. 😊👍

@michaelzallar9524 2 жыл бұрын

I just completed mine, IT VERKS!!

@PranaTech 2 жыл бұрын

Hey, that’s awesome! I’m glad to see someone build one! 😁👍❤️

@javimaciel875 2 жыл бұрын

Hello, I really enjoyed watching your videos they are very detailed and great ideas. My father and myself tired to build this foam generator. For some reason it doesn't suck up the soap water. The bottom hose blows out the air? Any ideas why?

@PranaTech 2 жыл бұрын

Good morning Javi! Ok, so start your water pump first and get water flowing and then turn on the air. This makes sure the pump doesn’t lose its prime and air doesn’t flow back through the pump. Also, start your air pressure at a lower psi and then raise it up slowly to make sure your pump can keep up and match the air pressure output. Typically I am running about 55-60 psi on the air side of the output. If still no water, make sure your pump will pump with no air flowing. You might have gotten a defective pump. Hope this helps! 😊👍

@AzimuthAviation 3 жыл бұрын

Good job Don! I've been looking at an off grid project in southern Arizona in the Madrean Sky Islands. One of my Air Force units was headquartered at Davis Monthan and I want to come home to Arizona. I'll be casting into batch forms to cut and construct blocks and arches for a Pueblo/Mission style casita and sheds. I looked over your schematic and see a perfect opportunity for experiment that you're well suited with your gas tank endeavors and into foam cement chemistry. I have study into using CO2 as an admixture to accelerate both cure times and ultimate strength. Your design here could easily split to use a pancake compressor to drive the water pump and be fed with C02 from a tank to generate the foam. In industrial applications CO2 is being used both at mixing plant or truck prior to pour to either decrease project times with the faster cures or reduce cement content and cost with comparable end product strengths. It would be very interesting to see if we DIY folks could approach the strengths of commercial autoclaved cellular concrete in the field keep up the good work!!!

@PranaTech 3 жыл бұрын

Hi Roy! Thanks for the awesome comment! I had no idea they were using Co2 in making Aircrete! Now I have a bunch of research to do. Thanks for the heads up.👍 Your project sounds like a great one! Would love to see some pics or video of it when you get going. 😀👍Don

@AzimuthAviation 3 жыл бұрын

@@PranaTech Don, I've yet to find study or data where CO2 has been evaluated in aircretes. So far all I've run across are standard construction mixes using aggregates. You should be able to easily find both science/engineering studies and commercial ventures regarding CO2 and concrete as part of "green" concerns and solutions. I have a background in science and engineering with some engineering materials science classes years ago with concrete. I would think cellular/foam concrete would be fertile ground that could use the process. I'm an electronics guy looking to mine the monsoons for water using Mollison techniques found in the developing world and eventually have rfid chips on free range chickens tracking weight and egg laying as I continue to terraform wasteland into an organic permaculture farm and astronomy camp. Let's keep in touch and I'll keep an eye on your progress on your channel.

@AzimuthAviation 3 жыл бұрын

@@PranaTech I'll say this is promising (www.irjet.net/archives/V5/i4/IRJET-V5I4980.pdf) if you remove the last bracket for the url to the pdf.

@garyt903 2 жыл бұрын

Roy & Don, I am designing an 1880's Spanish colonial hacidena that is steel framed (because it's on a mountain side of solid rock) and infilled with large blocks of aircrete to simulate 20" thick adobe, because there's very little dirt around here to make adobe with. Also using authentic 120 year salvaged hand hewn barn timbers, for the Spanish style timber frame interiors, stairwells, ceiling floor joists, etc. So the Aircrete blocks won't be supporting any weight except the weight of the aircrete blocks only. I would like to hear any ideas anyone has in the manufacturing of large scale aircrete building blocks. My email is garythomas891@hotmail.com. Thanks for any ideas... from anyone interested,

@PranaTech 2 жыл бұрын

Hi Gary! Wow, that sounds like an awesome project! I’ve never cast anything that big before, but there are some videos on KZfaq that I saw where they cast the blocks about 3 feet by 4 feet by 5 feet long. When they are cured after a few days, they saw them into the size blocks they want. Here are a couple links to their videos. kzfaq.info/get/bejne/lbCfe5uZlpmUeY0.html. kzfaq.info/get/bejne/jb-JmLqHtZqbcmQ.html 😁👍

@havanaday9981 2 жыл бұрын

I would buy a longer box and mount a holding tank for your foam agent that way you don’t have to deal with that extra bit of tubing, but man good job building this yourself I’m sure it was easy for you

@PranaTech 2 жыл бұрын

That’s a great idea! I did make this one so I could attach it to a 55 gallon plastic drum so when I do large batches I don’t run out of foam solution. Thanks,😁👍

@eulachonfish 3 жыл бұрын

Nice unit. You actually are generating a practical amount of foam unlike many on KZfaq. Have you ever measured the air-liquid mix ratio? The amount of liquid consumed per minute is easy to measure, but a flowmeter of some sort would be needed for the air. Looking at the clear output hose, there appears to be quite a bit more air than liquid and it's possible a venturi eductor could draw enough liquid that you could eliminate the pump. This would make the unit really cheap and compact - in fact the venturi could be mounted right to the rear of the wand. Deep well ejectors are available for purchase separate from their pumps and have pretty good suction ratios. Also, a 3D-printed eductor could likely be designed with an appropriate mixing ratio, assuming the air is in reasonable excess.

@PranaTech 3 жыл бұрын

Hi there E V Ranch! Thanks for the great comment on my new design! I have played with a bunch of different designs and the Venturi designs need a lot of air flow to create the suction needed to make good foam and this results in foam that is too light for durable Aircrete. I need thick shaving cream like foam with very small bubbles to make high quality Aircrete and I just couldn’t make it happen with my Venturi designs. That doesn’t mean it’s not possible, I just wasn’t successful at it. It was just easier for me to dial in the foam density I needed with the mechanical pumps and valving to regulate air and water volumes.👍😀Don

@eulachonfish 3 жыл бұрын

@@PranaTech Thanks for the reply! Definitely easier to mix two fluids under pressure than by suction when you're trying to produce a reliable product. After all the point is to make concrete, not over-optimize the foam machine. I hope to do some aircrete experiments next year as freezing temps are coming soon and will probably mess with some venturi ejectors myself. I suspect backpressure from the foam wand likely limits venturi performance, and it might require a multi-stage ejector to get enough liquid flow. Thanks for sharing these builds, hope your channel gets more attention since between your foam generator and homemade cement mixer you have a better setup than most. Maybe show off some more test pours and finished slabs. I know I don't want to waste my time with a mortar paddle if I don't have to, will be building or modifying a mixer as well!

@yussefbarake9625 8 ай бұрын

Thanks. Its wonderful. Kindly i tried everything as mentioned in your video. Unfortunately the double diaphragm pump did not start even we raised the pressure up to six bars. can you please help us on this issue. Regards

@PranaTech 8 ай бұрын

Hello my friend! If your pump is a Chinese made pump then the piston may have become stuck from sitting in storage. There is a cover plate that has four bolts. Remove the plate and seal and there should be a plastic piston behind it that is what moves back and forth to switch from one diaphragm to the other. Spray some silicone lubricant or Teflon lubricant on the piston and try and get it loosened up and moving again without damaging it. Once that piston gets moving, replace the cover and test the pump. Repeat this process until the pump start working. Once you get the pump going, let it run for a little bit to help the piston seat into the housing or “break in” as some people call it. I hope this helps and you are able to get the pump going.😊👍

@williamtabbert6456 3 жыл бұрын

Good Day and thanks for the videos! In the comments, you mention building one even larger. I am looking at purchasing a second-hand concrete truck and modifying the internal paddle system to be a little more "foam friendly?" I am curious if the larger one worked out? I would love to speak to you. all the best, Bill Tabbert

@PranaTech 3 жыл бұрын

Hi Bill! Wow, you aren’t messing around! I wouldn’t worry about altering the paddles in a concrete truck. They are a spiral design and turn slow enough that it will work great with Aircrete. My larger design that I’m building is just an enlarged copy of this model. The only change I made was not putting it in an aluminum box. I built an open aluminum frame with wheels so I can roll it around the yard. I used a 1” double diaphragm pump for this one and larger air regulators to handle the higher cfm needs of the diaphragm pump. Here is my email if you have any other questions that I may be able to answer. pranateq@gmail.com 👍😀

@josefernandopellecer494 2 жыл бұрын

Hi Don good videos and nice mavhines i make one and today i make my first foam. But i have questions. In entrance what pressure and in both regulator (one for pump and other for mix. The 3 keys works for control the quantity of air and mix? Iam from guatemala

@PranaTech 2 жыл бұрын

Hola Jose’. The one regulator controls pressure for the pump and I set mine at about 85psi and the other regulator is air pressure injecting into the foam solution after it comes out of the pump. I set this air pressure at about 65 psi. I then use the air valve at the Y fitting to control the volume of air going into the foam solution to adjust for density of foam. Hope this helps! Let me know if you have any other questions. Buenos Noche! 😁👍

@AnarchyFreak4185 3 жыл бұрын

I like this set up. Safe to assume I don't need to use the aluminum box? I could use say a tote box with wheels or even a hand cart? Or was there a reason this box was chosen?

@PranaTech 3 жыл бұрын

Good Morning! Yes, any box will work! I’m actually building an even bigger version that just has an open aluminum frame that I welded up and has wheels to roll it around. 😀👍Don

@alanabraham3129 Жыл бұрын

Great job with the build and the videos, since you have thought about an increase in foam and made this generator have you put any thought into re-making the whole system by making a horizontal mixer from a 55 gal. drum connecting the foamer to directly input into the mixer and then make a pump system to pump the mixture from the mixer to your forms no matter how far away they are? Just some food for thought, I am thinking about doing a test build on something like this in the near future.

@PranaTech Жыл бұрын

Hi Alan, yes, I have thought about these things and experimented with some of your ideas. They are good ideas! Some things that I have discovered is that Aircrete is somewhat fragile and to get the best results, you need to mix the foam/cement slurry just barely enough to incorporate all the foam and then stop and pour into molds. The more you agitate the solution, the more the bubbles pop and the less Aircrete you get as and end product. Pumping Aircrete needs to be done gently and the types of pumps that work well are diaphragm pumps and screw type pumps. These mechanically move the mix without agitating the bubbles. I also wouldn’t pump more than about 20 feet to my forms due to the friction in most hoses, larger being the best. 1.5” or 2” By the way, I am working now on creating Aircrete via a chemical reaction vs the foam method. It is more reliable than foam injection and doesn’t require the light touch as traditional Aircrete. I should have a video soon that explains the process and the recipe so everyone can do it at home. I hope this helps 😊👍Don

@alanabraham3129 Жыл бұрын

@@PranaTech I will be watching for the new video, and thanks for the info Don

@BenKoren 9 ай бұрын

Looks great. What projects did you end up making with this?

@PranaTech 9 ай бұрын

Hi Ben, I’m working on making molds now for blocks so I can build my workshop out of them. 😊👍

@BenKoren 9 ай бұрын

@@PranaTech that’s awesome. I’d love to see the details on that.

@destitute8493 10 ай бұрын

If you power the foam generator with a tank of argon instead of an air compressor, you might be able to use foam to extinguish electric vehicle fires.

@PranaTech 10 ай бұрын

I like the way you think!😊👍 That made me wonder… if I used helium would it make the Aircrete even lighter???😁

@mcroftjr 3 жыл бұрын

Nice. What's your choice of foaming agent?

@PranaTech 3 жыл бұрын

Hi Michael, I tested it with Drexel, Richway CMX, and Vermillion and they all worked amazing through this thing! Vermillion is my new favorite though. It costs more initially but, it is so concentrated that you end up spending 5-6 times less overall because it can be mixed at a 320/1 ratio! It is also non-toxic as well.👍😀

@robertweekley5926 3 жыл бұрын

I think a "Dial' with numbers, like a Clock Face, under the Valve Levers, Could help make Consistent Settings easier.

@PranaTech 3 жыл бұрын

Hi Robert! Hey, that’s a great idea! I usually leave the levers set after I get it producing good foam, but sometimes the levers get bumped and I have to fine tune it again the next time I use it. Thanks for the great idea!😁👍

@richardmccann4815 8 ай бұрын

@@PranaTechA pressure gage in the input might show why settings are less repeatable than expected. Hope that helps with more precise control, but I can't guarantee it. Just a thought! Peace.

@PranaTech 8 ай бұрын

That’s a great thought! 😊

@AzimuthAviation 3 жыл бұрын

Hey Don! Checking back on your channel and saw your awesome build on the compressor! Have you had a chance to test any Aircrete foam batches using bottled CO2 with your generator?

@PranaTech 3 жыл бұрын

Hi Roy! Thanks for the compliment on my compressor build! I haven’t tried any CO2 experiments yet. I sold the latest foam generator to a friend and I’m building an even bigger one right now. This new one needs a lot of air to run the pump and inject air into the foam as well so using co2 would get expensive quickly. Great to hear from you! 👍😊

@slaughterhousebikes8309 2 жыл бұрын

Run the pump off a compressor and the co2 to the wand maybe?

@PranaTech 2 жыл бұрын

Great idea!👍😁

@speedbuggy16v 3 жыл бұрын

Great video, thanks for the info, you mentioned south american and a dome home. Are you doing missionary type work or going to be an expat?

@PranaTech 3 жыл бұрын

Hi Speedbuggy, I’m planning on being an expat!👍😁

@speedbuggy16v 3 жыл бұрын

@@PranaTech I wondered, a lot of people are doing that for retirement, its a lot cheaper to live in other parts of the world compared to the US.

@michaelzallar9524 3 жыл бұрын

Thank you. Here's to monetization, and youtube algorithms.

@PranaTech 3 жыл бұрын

Thanks Michael!👍😊

@errolgachette3133 2 жыл бұрын

From Aruba

@raydreamer7566 3 жыл бұрын

I like and understand your foam making system. Would you be interested in producing a complete system as you have and shipping it to the Philippines where I am. Sourcing component products for building machinery here is difficult.

@PranaTech 3 жыл бұрын

Hi Ray, I don’t usually make them for sale. I did sell my medium one to a guy in California and it cost almost as much to ship it as it did to build it, so shipping to the Philippines would probably be way more. 😳

@sheilabikinis206 2 жыл бұрын

Is the finish on top with the small bubbles smooth? Can you add color to it ?

@PranaTech 2 жыл бұрын

Hi Sheila! The finish is pretty rough with all the bubbles on the surface and some of them are popped. You could give the Aircrete a skim coat of mortar cement after it has hardened and then hand trowel it to a smooth finish, but that would add quite a bit more work to the process. 😊👍

@mosesmwangi5897 3 жыл бұрын

Great video,hi i ordered a diaphragm pump and got one that has a max of 22 l/min and not 33l/min,can this pump work or do I need to order another one.

@PranaTech 3 жыл бұрын

Hi Moses! Your pump will work fine, it will just have a lower overall output of foam so your production will just be a little slower than it would be with the larger pump. Let me know if you have any questions when you get to building the generator. 🙏😀 Don

@Christ_on_the_River 3 жыл бұрын

I'm about to place a parts order and have a performance question about the dual diaphragm pump. Because of limitations from an injury, I need a way to pump the aircrete from point to point. Can the pump be used to create vacuum? I envision a spare water heater tank with a hose hooked up to the hot side of the tank running to a vacuum generator and a hose from the cold side dropped into the aircrete mix - drawing the aircrete into the tank without running aircrete through the dual diaphragm pump. The second half of the process would use the air compressor to pressurize the tank and hook up a hose to the drain valve for aircrete point to point pumping. So, the question I have is will it damage the dual diaphragm pump for it to be switched from the foam generator function to a vacuum generator function for filling the tank for pressurized point to point delivery?

@PranaTech 3 жыл бұрын

Hi Jeff, these diaphragm pumps don’t create much vacuum. I’m in the process of building an even bigger model that uses a 1” inlet double diaphragm pump. The larger pumps can be used to create foam as well as pump aircrete into molds if you need to. The only thing you would need to add is a back flow valve on the air inlet so that the aircrete doesn’t get pumped back through the air line into the air system. Obviously you would need to flush the system well after pumping aircrete. 😁👍

@slave_K Жыл бұрын

do you need air regulators or the ball valves are enough?

@PranaTech Жыл бұрын

Yes they are needed. The regulators are to adjust pressure and the ball valve is for reducing volume of air flow. 😁👍

@garyt903 2 жыл бұрын

Don, I can't seem to find your parts list for this foam generator your showing in the video. Can you please give me directions to it? Thank you.

@PranaTech 2 жыл бұрын

Hi Gary, the links and list are in the description. Right next to the title of the video there is a small downward pointing arrow. Click on that and it will expand the video description and links to all the parts used. 👍😁

@slave_K Жыл бұрын

would it make a difference to get 1/4" air regulator vs 3/8" ?

@PranaTech Жыл бұрын

Hi Slave! You might be able to get away with 1/4” regulators if you run 3/8” or larger lines everywhere else in the system. You need a lot of airflow to run this system because it is powering the pump and creating the foam with airflow into the the output line. Hope this helps! 😊👍

@claudelongpre4270 3 жыл бұрын

Living in the coldest part of Canada , my main concern with aircrete is insulation.Can someone tell me the best R-Value I can get with your Foam Generator and the weight PCF.Thank You

@krussellgal 2 жыл бұрын

Maybe this can help? kzfaq.info/get/bejne/bLtkfaSg1ZbIhI0.html

@harryarmpits9407 Жыл бұрын

Can you use gate valves instead of ball valves? They are cheaper so why not?

@PranaTech Жыл бұрын

Hi Harry, yes gate valves will work fine and be more precise.😁👍

@robertsmith2199 2 жыл бұрын

Wouldn't the general production of the foam parts be, basically, the same as a smaller version except with a larger reservoir for soapy liquid? Seems to me that that is the only restriction as to the quantity of foam that can be produced at once.

@PranaTech 2 жыл бұрын

Hi Robert. Yes you are correct! The reason I built this version was so I could produce foam off grid with an air powered foam generator. This way I could run it with my gas powered air compressor. I also wanted a higher output of volume of foam so I could dose a concrete truck full of foam in short amount of time. The small foam generator works great but it would take a while to dose a few yards of cement, and it needs electricity. 😊👍

@fshah48 8 ай бұрын

An average Joe will have hell of a lot of time to adjust the output volume and density. Please test the cross control of volume on density and vice vera. An uncoupled design would be the last word.

@PranaTech 8 ай бұрын

Hi Farooq! Once it is up to pressure, it takes about 5 minutes to adjust and then you rarely ever have to adjust again. I had never used one of these before and I had it up and running in 5 minutes.😁👍

@parthakumar4359 3 жыл бұрын

Great video with explanation. I have a question regarding the foam density. You mention that the foam needs to pile up rather than just float. Doesn't this depend on what the foam density( g/ltr) is? What density would you suggest for the foam to be?

@PranaTech 3 жыл бұрын

Hi Partha, the foam density should be approximately 3 to 3.5 pounds (1.36 to 1.58 kilos) for a five gallon bucket full of foam (19 liters). This is not including the weight of the bucket. This is just the weight of the foam alone. 😀👍

@parthakumar4359 3 жыл бұрын

@@PranaTech do you have any knowledge on aircrete pumps? Some use screw pumps and some use peristaltic pumps. I don't know whether these pumps are modified in order to pump aircrete or not

@PranaTech 3 жыл бұрын

Either one of those will work without modification for Aircrete. I am current in the middle of building a linear peristaltic pump that will be used for pumping Aircrete as well as shotcrete.👍😁

@parthakumar4359 3 жыл бұрын

@@PranaTech please do a video on the pump once you are finished.

@PranaTech 3 жыл бұрын

Hi Partha, yes I definitely will!👌😁

@errolgachette3133 Жыл бұрын

Hi, how big must the compressor be? tank, psi, cfm?

@PranaTech Жыл бұрын

Hi Errol, the compressor I was using was 8cfm with a 30 gallon tank and the foam generator was set at 60psi. Hope this helps! 😊👍

@nunolopez2489 3 жыл бұрын

at what psi should you have each air regulator

@PranaTech 3 жыл бұрын

Hi Nuno, right now I’m getting the best performance with the pump air set at 80psi and the output air at 32-35psi 👍😁

@nunolopez2489 3 жыл бұрын

Hi how many CFM do your compressor has and what is the smallest air compressor you can operate on this foam generator.

@PranaTech 3 жыл бұрын

Hi Nuno! Mine is a 10 CFM compressor and it runs it fine. You might be able to get away with a little less but 10 will for sure keep it going. Hope this helps! 👍😀Don

@slave_K 11 ай бұрын

What about the water that collects on the bottom under the foam. There is always couple of inches of water. Should you mix it with the concrete or maybe it would be better to drain it and leave only foam. I get good dense foam, just i am not sure about the water??? What would you do?

@PranaTech 11 ай бұрын

Hi there! Well, the only time I have gotten any water is if you let the foam settle in a bucket. The foam comes right out of the foam gun into the cement slurry and gets mixed right away so water is never an issue.😁👍

@slave_K 11 ай бұрын

@@PranaTech yes, but that additional water still ends up in a mix making it more runny than you want it, i am just a beginner here, overthinking things. Do you have any videos of finished aircrete structures?

@PranaTech 11 ай бұрын

Hi there, no I don’t have any videos with finished Aircrete. I could not find ANY engineer that would sign off on plans for a home made with Aircrete. The only option is to build in an area that has no building codes and build with no permit. The rest of the world builds with it all the time, but American engineers and architects will approve nothing unless it has been tested and approved here in the US. It’s been a lesson in futility and frustrating to say the least. I have been experimenting with chemically activated Aircrete that requires no foam and it is looking promising so far. I should have some videos soon about it.😁👍

@clintyou1 3 жыл бұрын

How much to have you make it and ship it and ship it to Florida. Thanks

@PranaTech 3 жыл бұрын

Hi there! Sorry I don’t make them to sell. I just post this up to help others build their own. Thank you for your interest though!👍😊

@johnnavarro9169 3 жыл бұрын

Hey great job mate, I am building one over Christmas, just ordered the pump, $219 Australian delivered which isn't bad . I am going to infill the walls of my house with aircrete. They are currently one half meter thick timber walls columns are diamond drlll rod( schedule 40 steel) with conctete piers around them. The house was flooded once and the timber has to come out of the walls so that's why I'm doing aircrete. I will put mesh in it but am thinking of plastering it with lime to give it a long lasting waterproof coat. Where I live on the west coast of Tasmania we get about 2 meters of rain a year and snow at the oddest times, ( middle of summer). So aircrete sounds great to me, easier to mix too. What do you think about the lime plaster Don? . I am a retired logger, we call ourselves tree fallers here. Due to an accident I had to quit and became a potter. I have just built a rocket mass heater in my studio to dry my pots and it is great. Currently I have a 100 cubic foot gas trolley kiln and am just rebuilding part of my studio so when I do the walls I will probably use aircrete as well, thanks so much for your kind help. I would like to send you some cups in the future when I get going again, God bless, John.

@PranaTech 3 жыл бұрын

Hi John! Glad to see someone building one of these generators! Sounds like a great project you have going. Are you going to make blocks and stack them up for the walls or make forms and pump the Aircrete into the walls? I think the idea of lime plaster is a great one! It will waterproof the Aircrete and toughen up the surface because Aircrete definitely benefits from a smooth, tougher coat on the outside layer. Would love to see some pictures when you get going on this.👍😀Don

@johnnavarro9169 3 жыл бұрын

@@PranaTech Hi Don , I am going to pump it straight into formwork for the walls . 2 foot hight of formwork and lift as I go. Just getting over an operation but will be starting soon. I will definately send you updates and photos, hey thankyou for your helpful support your a legend to me and most probably to a lot of other people, you should know that, John.

@PranaTech 3 жыл бұрын

Hi John, thank you for your very kind words! They are much appreciated! Sorry for the delay in my response. I got called in to work for some overtime. 2 foot forms sound good. You’ve obviously done your homework and it sounds like you have a great plan. It’s always nice to see people building their own stuff. Keep me posted and I wish you a speedy recovery from your surgery.🙏🙂Don

@katijaassanagruene4023 2 жыл бұрын

use a plasticizer if u plan to pump into a wall - 1oz to 92lb cement is what Aircrete Harry found doesn't collapse after a foot height Sika 4100 viscacrete (sp?)

@PranaTech 2 жыл бұрын

Hey, thank you for the great information!🙏😊

9 ай бұрын

Qual o valor para Portugal

@jamescostello5824 3 жыл бұрын

I was wondering if you have a more detailed plan on how to put this together, such as length of houses. How did you attach the pump to the box, etc.

@PranaTech 3 жыл бұрын

Hi James, the suction hose is approx. 4.5 feet long and the discharge hose is approx. 8 feet long. The pump is just screwed up through the bottom of the box to the factory mounting holes of the pump. 👍😁Don

@jamescostello5824 3 жыл бұрын

@@PranaTech How did you attach the regulator bar to the box, did you weld it?

@PranaTech 3 жыл бұрын

Hi James, the regulator is held in by the nut that tightens down on the adjusting stem. The only other thing that I did that was irregular was to make a copper tube that extended the pressure gauge out the front of the box. This I did by soft soldering the copper tube to a couple of brass fittings on each end. The regulator gauge tightens down on either side of the aluminum box to align the gauge face. 😀👍

@jamescostello5824 3 жыл бұрын

@@PranaTech Okay so I got all the parts and put them together, but the pump doesn't turn on when I open the airline ball valve. Any Idea?

@PranaTech 3 жыл бұрын

Hi James, what type of pump did you use? Can you take a picture of your setup and email it to me? My email is pranateq@gmail.com

@nepalidolnews2528 3 жыл бұрын

Sir can we use this for cellular light weight concrete plant ? if yes, does it work with every quality of foaming agent?

@PranaTech 3 жыл бұрын

Hello. Yes, this is exactly what this machine is designed for. It will work with just about any foaming agent.😀👍

@nepalidolnews2528 3 жыл бұрын

@@PranaTech sir i have no experience with clc block, i want to build interlocking clc block, i have doubt with lifespan of clc block as noone of this locality never used it before, if ratio goes perfect will it be so good than normal clay brick (burnt) , please please sir share your experience with clc☺️

@PranaTech 3 жыл бұрын

Hi there, if you would like to have the clc block be more durable, just add a percentage of sand to the mix. The more sand you add, the more durable the block will be. I would always do an outside coat of stucco or cement plaster to protect the clc blocks from the weather. This is one of the best interlocking clc production videos that I have found. m.kzfaq.info/get/bejne/d9CXnNqUy9fQfKM.html enjoy!😀

@bryannapier3354 3 жыл бұрын

Did you use the richway foam?

@PranaTech 3 жыл бұрын

Hi Bryan, yes I used Richway foam on that video. 👍😁

@robertwilkinson8115 3 жыл бұрын

Would it be possible to eliminate a pump by putting the solution in a pressurized container? The air compressor could both power the air supply and pressurize the solution. Use a valve for the fluid and/or a pressure regulator for the air. That would simplify the build and cut costs, right? Use a paint pot or old pressure cooker for the pressure vessel, or even build one with PVC.

@PranaTech 3 жыл бұрын

Hi Robert, yes that design is being used by others in the Aircrete world right now. The designs that I looked at were quite cumbersome to use though because unless you build a large pressure pot(expensive) you have to keep stopping to fill them and the pvc ones you can’t see how much solution is left or when you’re going to run out. With a diaphragm pump you get a fixed and calibrated volume every time it pulses so it is the easiest design I’ve used to dial in good repeatable foam. 😁👍

@robertwilkinson8115 3 жыл бұрын

@@PranaTech I just looked under the hood of a commercial unit. A simple and amazingly small rectangular box with a power cord, switch and foam hose. Way too simple! Fill the 7 gallon pressurized container, fixed orifice controls the flow, mixes with the air from the internal air compressor which has the pressure preset, into the mixing chamber and the hose exits the unit. Turn it on, turn it off. S3,500 (ouch). I'm going to try to make on. Thanks.

@PranaTech 3 жыл бұрын

Hi Robert! Yes, once I saw a bunch of the designs out there and the ridiculous prices they were charging, that’s when I decided to show people how easy it is to make your own! 😊👍

@heidiking4629 3 жыл бұрын

Hey, my dad would like you to build one of these for him if at all possible? If it is, please let me know. Idk how to get in touch with you other than here.

@stevewallick1197 3 жыл бұрын

What is the pressure set for the pump ? And what is the pressure set for foam ?

@PranaTech 3 жыл бұрын

Hi Steve! I set the regulator for the pump at 85psi and the air injection regulator is set at about 60psi. I then further regulate volume with the gate valves to balance the foam until it measures about 3-3.5lbs per 5gallon bucket full without the weight of the bucket.😁👍

@flongo11ify 3 жыл бұрын

EXCELENT JOB WITH THE FOAM GENERATOR. I WILL BE MAKING ONE IN THE NEXT DAY OR SO .CANT WAIT TO TRY IT OUT .HOW MUCH FOAM DO YOU ADD TO A 90LB BAG OF PORTLAND CEMENT?

@PranaTech 3 жыл бұрын

Thanks Francesco! I mix 6.5 gallons of water with the 90lb. Bag of Portland in a 55 gallon drum and then once it is well mixed, I add foam up to the 45 gallon mark on the drum and then mix gently until fully incorporated and then pour into your molds. Have fun! 😁👍

@flongo11ify 3 жыл бұрын

@@PranaTech THANKS .SO I COULD BASICALLY TIME IT IF I WANTED TO DOSE VERY LARGE AMOUNTS AS YOU SAID FOR A CONCRETE TRUCK . I AM TRYING TO FIGURE OUT TOTAL VOLUME OF AIRCRETE PER BAG OF PORTLAND

@PranaTech 3 жыл бұрын

Hi Francesco. It is 6 cubic feet of Aircrete product you get from the one bag of Portland mix that I gave you. If you are dosing a cement truck, you could order one yard of just Portland slurry and add 5 yards of foam to make an approx. 30 pound per cubic foot Aircrete mix. 😊👍

@flongo11ify 3 жыл бұрын

@@PranaTech Thanks. I will be using it for precast walls for a swimming pool with mesh all around. I would love to get more advice from you in the next few days if that's OK with you

@PranaTech 3 жыл бұрын

Hi Francesco. I will be glad to answer any an all questions that I can. A swimming pool has a lot of lateral load on the walls and Aircrete isn’t really strong enough for that application. ☹️. It has amazing insulation qualities but not very good compressive strength without adding some sand and some density to it. Regular concrete pools use a ton of rebar for reinforcement with regular concrete and they still crack sometimes if not allowed to cure slowly enough.

@jamescostello3407 3 жыл бұрын

Excellent work! Do you have a private connection? I would like to collaborate with you on what we are doing.

@PranaTech 3 жыл бұрын

Hi James, my email is pranateq@gmail.com😀👍

@yousephmahmud1613 3 жыл бұрын

Hi Don, Can this new design be configured for smaller batches as your original Foam generator? What I mean is can we eliminate the electrical Diaphram pump that was used in your original foam generator and use a pump only running of the air compressor? Thank You

@PranaTech 3 жыл бұрын

Hi Youseph! Yes, this design can be turned down a little by reducing air pressure to the pump and gating down the ball valve a little on the output side of the pump. You then just adjust the airflow to match the newer lower pump output until you are producing high quality foam again. Hopefully that makes sense.👍😀 Don

@yousephmahmud1613 3 жыл бұрын

@@PranaTech I'm in the process of building your original foam generator. The pump you recommended is on backorder. I wanted to generate small batches of foam at a time. maybe 2 to 5-gallon buckets of foam. My question would , what do you recommend, stay with your orginal foam generator plan plan or do you recommend the new version?

@PranaTech 3 жыл бұрын

Hi Youseph, for smaller batches I would probably stay with the original design you are working on. I found a pump on EBay just now that will work since the other one is on back order. Here’s the link. www.ebay.com/itm/New-Aquatec-Demand-Delivery-Diaphragm-Pumps-115V-AC-80-PSI-1-GPM-DDP-7800-Barb/303603541368?hash=item46b02e6578:g:NZkAAOSweW9e8VOg 👍

@yousephmahmud1613 3 жыл бұрын

@@PranaTech Thanks Buddy, Just ordered it.

@PranaTech 3 жыл бұрын

Awesome!👍😁

@flamingo5898 3 жыл бұрын

Do you have links for where to purchase the parts? Thank you.

@PranaTech 3 жыл бұрын

I’m working on the list right now and should have it posted in the description soon.😀👍

@PranaTech 3 жыл бұрын

Parts list is now in the description section. 👍😀

@flamingo5898 3 жыл бұрын

Prana-Tech Awesome. Thank you.

@rusosure7 6 ай бұрын

Greetings Don, A google search claims 'aircrete' has an r-value of 6. Naturally, this seems a bit high, and it seems it is the value of the European type of AAC that uses a chemical process to create the air cells, and not the external foam generators we tend to see in the US. Monolithic has the 'R-Value Fairy Tale' which dispels many myths about the effectiveness of Fiberglass, and highly totes PolyUrethane. PU insulation is EXPENSIVE today. My question is: Have you performed any type of test on your Aircrete to evaluate the effective R-Value per inch? And if so, what could we expect? Thanks!

@rusosure7 6 ай бұрын

Disregard. It seems Domegaia has admitted an R-value of ~2 depending on its density. They even link the Monolithic article as well. I'd really like the R-6 value of PU, especially because I'm planning on only having 3" thick walls. They won't be for structure, but as an outer insulative layer of a 3" shotcrete wall. Similar to the Monolithic domes, but without the airform construction. I was hoping a 'Bow-Construction' would enable 3" thick walls that could be filled with Aircrete, and then support a web of rebar, with gradual applications of shotcrete, just like Monolithic domes. But rectangular floor plan, not round.

@vigamortezadventures7972 5 ай бұрын

Any updates on your aircrete can you show your aircrete work don’t think we seen the final product

@PranaTech 5 ай бұрын

Hello! I’ve actually been working on a new way to make Aircrete chemically instead of foam injection, and it is much more consistent than the foam method. I should have a video out soon showing how to do it with a simple recipe and very little machinery. 👍😊

@cniconstantnever-endingimp6104 Жыл бұрын

hello,Mr/ Don what electric pump will you recomend , if i dont want to use the air pump , to build a same output foam machine ? power grid is not a probrem and for me buying the pump and bigger compressor is too expenisve , othe question , how much air i will need ? or compressor size , just for the foam wand ? Thakyou very much

@PranaTech Жыл бұрын

Here is a link to my other foam generator that uses an electric pump and you can use a 5.5cfm compressor or larger to make foam for aircrete. kzfaq.info/get/bejne/f9mhhLKjtM20oXk.html

@cniconstantnever-endingimp6104 Жыл бұрын

@@PranaTech Thanks for your ttention , but I did build a foam generator using your videoas gude , my question is if i want to build your second foam genarator the bigest output , but i dont want to use that air pump, what bigger electric pump you recomend 12 gpm and how many PSI , and how big a compressor just to run the foam wand , not the air pump ? thanks

@PranaTech Жыл бұрын

Good morning! Ok, I have never built an electric version of this so my suggestion would be to find a comparable electric pump with around the same gpm output and then you will need a compressor with at least 7 cfm output to run the larger foam wand continuously. You might be able to get away with a smaller compressor but you may have to stop and wait for pressure to build back up. 👍😁

@cniconstantnever-endingimp6104 Жыл бұрын

@@PranaTech thank you ,very much !

@PranaTech Жыл бұрын

Anytime! Let me know if you have any other questions when you get to building it and I’ll gladly help if I can. 👍😊

@edwinbickel 3 жыл бұрын

If you weigh the foam in the 5 gallon bucket, ideal range would be 4 lbs to 4 lbs 6 ounces with 4 lbs 3 ounces being best!👍

@PranaTech 3 жыл бұрын

Hi Edwin, thank you for the great information! I always appreciate it! 🙏😁

@edwinbickel 3 жыл бұрын

@@PranaTech To a 55 gallon drum add 6 gallons water, 92 lbs cement and the rest foam. Fill to 45 gallon mark. 1 batch is 6 cubic feet which equals 45 gallons. Shoot for a foam density to be 4 lbs 3 ounces to a 5 gallon bucket.

@garyweber6413 3 жыл бұрын

Hello Edwin, I see everyone saying 3lbs to a 5 gallon bucket.Maybe thats why I am having collapsing problems.

@PranaTech 3 жыл бұрын

Hi Gary, mine is usually around 3.5 pounds for a 5gallon bucket of foam. 4 pounds is even better density if your generator can produce it. I put more emphasis on the density of the end product. That’s why I measure my density of the Aircrete once mixed with my scale to make sure the cast weight is right on for the density of my final cast product. I usually shoot for about 30-35 pounds per cubic foot for lightweight Aircrete and around 70 pounds for high strength Aircrete. 😀👍

@PranaTech 3 жыл бұрын

Your machine is making great foam Edwin if you are able to produce over 4lbs density in a 5 gallon bucket! Nice!👍

@flongo11ify 2 жыл бұрын

Don will a 11.5 cfm at 90 psi compressor be good enough for this foam machine?

@PranaTech 2 жыл бұрын

Hi Francesco! Sorry for the delay today, I was offline for most of the day. Yes, that will work great! Mine is only 10 cfm and it handles it great. 😊👍

@flongo11ify 2 жыл бұрын

@@PranaTech it only has a 20 gallon tank.?

@PranaTech 2 жыл бұрын

That’s ok, with that much CFM you will be fine. Mine only has a 25 gallon tank.😁👍

@flongo11ify 2 жыл бұрын

@@PranaTech don i am having a difficult time with the foaming machine . it was working fine for a bit but than things went sour. i think it has to do with the air being introduced through the same line as the solution . i think i want to try and split off another air line and go directly to the base of the wand where it can foam up the solution faster in the backpressure chamber . otherwise it seems to sputter to much and i can't seem to get a decent flow. your thoughts please . i am going to be doing a major project monday so need to be 100 % prepared

@PranaTech 2 жыл бұрын

Hi Francesco. Ok, did you use a Y where the air blends into the liquid line or a T? A y fitting will help with a Venturi effect and a T will cause the air to fight the liquid. Also, when starting up, make sure you get the liquid flowing through the pump first and then introduce the air into the line. Make sure that the air pressure isn’t more than what the pump can produce or the air will just overpower the fluid. Hope this helps!👍😊

@boots7859 3 жыл бұрын

Man About Tools has a number of videos where he goes into detail building multiple sets of planter box 'boards', using different recipes, cements, and additives. And he did destructive testing, and used wire 'rebar' support. Aircrete is pretty much useless for anything needing any sort of structural support, or is weightbearing. Lightweight concrete (cellular concrete) is the minimum weight 40-50% of concrete that is useable for most applications. An aircrete might be useful if you wanted to experiment with a drywall type replacement, however it can't offer any support that even dried gypsum provides. I wish it were different, but it isn't so far.

@PranaTech 3 жыл бұрын

Hi Boots! Well, the beauty of aircrete or cellular concrete is that you can vary the density from very lightweight that is mostly used for insulation purposes, or you can add sand to increase density to increase compressive strengths for more structural uses. It only depends on your needs. Other countries are way ahead of us in this regard and it is already being used in India and Mexico and many other countries for building homes affordably and are engineer approved. 👍😁

@katijaassanagruene4023 2 жыл бұрын

and it has been used in Sweden since the 1930s - commercially made tho

@richardmccann4815 8 ай бұрын

@@PranaTech A German company makes blocks commercially that are cut from huge autoclaved mega- blocks, that are cured under heat and pressure. I cannot recall the name, unfortunately. Nice video. Thanks!

@PranaTech 8 ай бұрын

Yes, I wish the autoclaved stuff was more common here in the USA! There are some builders in Florida using it that I’ve seen. 👍

@jamesward5721 Жыл бұрын

Simplistic me thinks dumping sufficient dish-washing soap into the mixer might do similar without the moving parts if you let the mix run just a little longer.

@PranaTech Жыл бұрын

Hi James! The problem with making Aircrete is that the mixing process pops the bubbles. The ideal situation then is to create as thick and dense a foam as you can make with the smallest bubble size (like thick shaving cream) so that they are not easily popped and to then add it to the slurry, then mix it just enough to incorporate the foam and then quickly pour it into your mold. 😁👍

@jamesward5721 Жыл бұрын

@@PranaTech Roish.. guess brickies etc etc using washing up liquid to aerate their mixes since the dawn of time must have been mistaken so.. what with their bubbles bursting. :-)

@PranaTech Жыл бұрын

Yes, much different process. I’m actually a stonemason laying stone right now. Aerating mortar is much different than using the air instead of sand as the actual filler for the concrete. 😊👍

@jamesward5721 Жыл бұрын

@@PranaTech Effort. I had hoped not to have to build a foam thingy.. guess I will have to re-watch the video & pay actual heed now. :-)

@PranaTech Жыл бұрын

I completely understand! I have actually moved away from foam based aircrete and have been experimenting with chemically induced aircrete where you don’t need any foam machine. You mix 50/50 Portland cement with lime and then add the water to make a slurry just like foamed aircrete, but then you add pulverized aluminum powder and then mix it at a higher speed than regular concrete and it has a reaction chemically that produces air in the mixture. It then slowly rises like a loaf of bread over about an hour or so and it is much more reliable for consistency. It is how they produce Autoclaved Aerated concrete. This you can make at home just leaving out the autoclaved part and letting it cure over 28 days. You can add sand to the mix and it becomes very structural at that point. Just another option if you don’t want to deal with the foam machine and all the related expense.😊👍

@errolgachette3133 2 жыл бұрын

Where can I find the big wand?

@PranaTech 2 жыл бұрын

Hi Errol, here is a link to the big wand build. 😁👍kzfaq.info/get/bejne/i7tliLaAv7Kbk4U.html

@errolgachette3133 2 жыл бұрын

@@PranaTech thanks

@taavetmalkov3295 Ай бұрын

hello. I am about to build it from the schematics. Can you give an update how it has stood the test to time ?

@PranaTech 29 күн бұрын

Hello! It has worked great over time. Occasionally I have had to disassemble the valve on the Chinese pump and lubricate it because it will stick occasionally. A higher quality pump would not have this issue but it may also be due to moisture in my air lines. The design works great though. 😊👍

@taavetmalkov3295 29 күн бұрын

@@PranaTech Fantastic! thnx for the info! i left out the pressure valves... :D i'll see how it goes. peace from Estonia!

@PranaTech 29 күн бұрын

You are very welcome! How will you regulate the pressures? The pump needs higher pressure than the input to the foam wand. The wand needs pressure reduced to about 55-60 psi or 380-413 kPa. You could eliminate one of the pressure regulators and just use the one on your compressor to adjust max pressure for the pump and then just use one regulator for the output of pressure to the foam wand. The pressure to the wand is fairly critical in adjusting foam consistency and getting the very dense, shaving cream like foam that is needed for Aircrete. Hope this helps my friend! Let me know if you have any questions as you get going. 👍😊Cheers!

@taavetmalkov3295 11 күн бұрын

@@PranaTechHey. I've been messing around with it for a while now and it appears that it can run without the pressure regulators also... Just i need to adjust the two valves i got. Adding the regulators would give me a better control indeed, so every time i get the same ratio of air pressure into the system, but manually adjusting also works fine. just i need to find the optimal locations every time - i kinda know what is now the best beat and whizz of the two streams :D Foam looks Jummy and shavy! I used two different thikness of metal scrubbers and a ironwool at the end of the Foamwand. Much thnx for the design again. ! Peace from Estonia , Europe

@PranaTech 11 күн бұрын

Excellent my friend! Simpler designs are always the best. Less things to go wrong in the future. Congratulations and I’m very glad to see it working and that you are enjoying success with it. Cheers from Arizona! 😊 Don

@basabbandyopadhyay225 3 жыл бұрын

What is the specification for Air Compressor?

@PranaTech 3 жыл бұрын

Hi Basab, this compressor that I’m using puts out about 8 cubic feet per minute @ 90psi and it is a 3 horsepower motor and 30 gallon tank. It has plenty of power to run this foam generator. 😀👍

@basabbandyopadhyay225 3 жыл бұрын

@@PranaTech Thank you

@markwilson8883 3 жыл бұрын

Would you build one with a wand and ship to me in NY

@PranaTech 3 жыл бұрын

Hi Mark. Thank you for the offer! I don’t build them to sell, I just build stuff to show others how to build things. 😊👍

@bzmrgonz Жыл бұрын

Did you ever tested this rig with a cement truck pour??

@PranaTech Жыл бұрын

Hi David, no I never got that far with it yet. I’ve been working on other recipes to improve the process and make the results predictable every time.😁👍

@bzmrgonz Жыл бұрын

@@PranaTech do you think the system can scale to say a 4 or 6 inch pipe? I feel like that’s the size which would allow for a mixing truck. Essentially they deliver the truck at 20% and you mix the foam in. What do you think??

@PranaTech Жыл бұрын

Yes, I have a 1” diaphragm pump that I was planning to do just that! Understand that you will need at least a 5hp 220v compressor to run it though.😊👍

@bzmrgonz Жыл бұрын

@@PranaTech thank you for those notes .

@PranaTech Жыл бұрын

You are very welcome! Let me know if you have any other questions. 😊👍

@nunolopez2489 3 жыл бұрын

could you reply by putting on all the parts model like the pump model

@PranaTech 3 жыл бұрын

Hi Nuno, I’m compiling the parts list now and should have it up by the end of today. 👍😁

@PranaTech 3 жыл бұрын

Parts list is now in the description section. 👍😀

@sethfree1 3 жыл бұрын

10cfm @ 90 is a HUGE compressor. Like commercial grade. I love this concept, but you'll need a $500+ compressor to power it. Granted that combined cost is still way lower than the commercially available foam generators, but it's still a big ol' bite to swallow for most DIYers.

@PranaTech 3 жыл бұрын

Hi Seth, well I really don’t know what the minimum size is that will run this thing. Mine is a 3HP twin cylinder and it isn’t a $500 compressor at all and it puts out right at 10cfm @90psi. I tried running it at work on an oil-less compressor that is rated at 4.3 cfm @90 and it could not keep up. I suspect that the minimum cfm is around 6 to 8 cfm. 😀👍

@sethfree1 3 жыл бұрын

Thanks for the reply, very helpful info. Do you mind sharing the make & model of your compressor? I can't find any with 10+ cfm under $500. Would also be great to know what your regulators are set to. I realize you tweak a bit for each batch/flow rate, etc., but I expect they are somewhat consistent, no? Your videos are hugely helpful, and much appreciated!

@PranaTech 3 жыл бұрын

Hi Seth, well I’m probably outdated on my costs for compressors. Mine is a 30 gallon Coleman that I bought at Home Depot 20 years ago. The compressor head blew up 2 years later and I bought a v-twin compressor head from Harbor freight and have been running that with a 3HP motor for 18 years! I see used twin piston compressors on Craigslist pretty regularly for $200-$300 here in Tucson. Hope that helps.😀👍

@sethfree1 3 жыл бұрын

Much obliged, thanks! Yeah, I don't think you can get a new one with 10+cfm under $500 any longer. Might have to keep my eye on the used market... I made myself a few foam generators in the past couple of weeks. Your vids have been hugely helpful. My current setup utilizes an impeller-driven transfer pump. Works quite well, but I have some issues with keeping the foam density consistent.

@PranaTech 3 жыл бұрын

Hi Seth, thank you for your kind words! I’m glad my stuff has helped! I’m sure there are many different designs that will work for producing good foam. It’s always fun to try out new ideas and designs. 😁👍

@nssdesigns 3 жыл бұрын

Couldn't you inject the concrete mix into it and save the mixer...

@PranaTech 3 жыл бұрын

Hi Paul, yes that is how Richway does it with their machines. They just back a concrete slurry truck up to their pump and inject the foam into the slurry in-line ahead of their pump and then pump it out to their fill area. Their machines cost $30k and up though.☹️

@nssdesigns 3 жыл бұрын

@@PranaTech I just thought as you have a mixing unit (for small quantities) you could add the extra cement slurry line do it that way... still don't need a $30k investment... I'm new to all this so forgive my ignorance.

@AircreteHarry 3 жыл бұрын

I used that pump before. I was not happy with it the price is right but that's it. No more Chines pumps for me.

@PranaTech 3 жыл бұрын

Hi Harry, yes, I know what you mean. The tolerances in the valve body were all over the place. I had to tear this one down and go through it and polish the valves and now it works great! 😁👍

@stevenborgens1390 2 жыл бұрын

i made a foam pump from a tesla turbine.

@PranaTech 2 жыл бұрын

Very cool!😁👍

@katijaassanagruene4023 2 жыл бұрын

Hi! I really appreciate your builds. One part is missing from the list - the air compressor plug on the outside of the box. what is the flow size? 1/4, 3/8 or 1/2? thanks! I am ordering all the small parts now, pump came in this week (mine is only a 4CFM but should be good enough for us)

@PranaTech 2 жыл бұрын

Hi Katrina! Good catch! Sorry about that. The plug is 1/4” and it flows enough for the output of this machine.😊👍

@katijaassanagruene4023 2 жыл бұрын

@@PranaTech cool thanks!