AirCrete

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  Aircrete pour in place pitched roof?
  • naeveh1  

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  @naeveh1 I don't see why not. Being that it's lightweight it could work great. Make sure to use the poly fiber on the inside of the pour to hold it all together monolythically. Also, will give you an insulative ceiling...FYI: You may not be able to walk on it though. Also, how do you expect to mix and pour this? Look in to a plaster mixer if necessary....this may be a good alternative to hand mixing. Too bad you did'nt use this for your walls. You would have insulative walls by now and a finished surface to paint.
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  Can I go up to a 40' diameter?
  • beachbum  

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  @Kwagga Think I just saw the same video. I mean how many Yap dome home videos could there be, right? Here is the one I found. Youtube Video
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  Can you tell me what foaming agent can be used in Australia thanks
  • longgrazz  

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  @Zander earth choice dishwashing liquid is great. The earth choice laundry detergent however is a disaster. Failcrete all round. Another good one available in Longreach is “Trucking Blue. Not only makes fine aircrete but the car sparkles. Might be harder to get out your way. Transporting cattle and mining gear on the highways, unsealed roads and dust paddocks of Outback Oz the only sign of life the a million insects dead on the windscreen, you need a heavy duty cleaner to spruce up. Cheers
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  How many bags of cement does one need . . .
  • dme2  

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  @dme2 Hi dme2, I’m building three connected domes in Longreach, Qld and I did calculation. I actually wanted to know how many blocks I’d need to make and could work out the amount of concrete. I’ll use one of my domes ok. Bedroom radius is 2250mm The surface area of a sphere: 4xpi x radius squared. So surface area is 4 x (22/7) x (2250 x2250) or 63,643,857. I need half a sphere (31,821,429) PLUS the part of a hemisphere enclosed by the height of the centre pole I’m using (900mm), ie 900/2250 of a hemisphere: 12,728,572. The total surface area I have to cover is: 43,550,001sq mm. My blocks measure 220x330mm. Total area 72,600sqmm. So number of blocks is 44,550,001 /72,600 Thats 600 blocks. I can make 70 blocks per pour using 6.2 bags. That’s 9 pours And 55 bags of cement. The numbers just look scary. Good luck
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  Foaming Agents in Australia
  • tanjenong  

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  @PeterG Thanks for that information and suggestions. My water to cement ratio was exactly the same, and the cement was brand new straight off the delivery truck from the manufacturer. Interesting that your block moulds were giving off that much heat. .... Mine never got hot. I may try your ratio of foaming agent to water and adjust the pressure to create the right weight to volume ratio. I am going to try making them in a heated space with warm water as the temp up here in May was 5C - 14C. Really appreciate your comments. Cheers
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  MIn. thickness of aircrete block
  • ssundar1  

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  Thank you. Do you have suggestions on ratio ? Thanks, Srini
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  How does Aircrete perform in cold climates?
  • Altitude High  

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  @Altitude-High Oh! sorry. Well, I am not an engineer so if you want an empirical answer, I am not the one to give it. My only thought on this topic is that an egg shaped dome will be much more resistant to load and will shed the snow more easily. I also believe that the compressive strength because of the vertical lift of the shape, has greater strength. An egg shape is incredibly strong. The dome is as well, but not as much. The Florence domes were based on the quinto acuto because of its vertical lift to counter act gravities forces downward that causes "lateral stress".
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  Aircrete In Canada
  • MartyMarthe  

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  @spectrumjim Hello I am attempting to get a building permit is Victoria and CRD have given me a form called "Alternative Solutions" and I have emailed Hajjar as he is an architect and the Chief building inspector has indicated they will issue a building permit if Hajjar signs the form. Good luck in Nelson. Bob
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  Interlocking Aircrete blocks?
  • thoughtdrops  

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  Thats funny! I got the same exact email years ago!
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  Passive house with AirCrete?
  • Altitude High  

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  Incorporating bottle bricks into aircrete block
  • noni  

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  @upwinger Hi, I am making the aircrete blocks in forms so they come out as individual 33cm x 22cm blocks with (mostly) square corners. I have been grinding the top off the bottle and joining two halves with waterproof tape, dipping in latex and incorporating into the block when poured. I don’t know how to get pix from my iPhone to here. But they let in lotsa light. Noni
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  The best foam agent ?
  • manstain  

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  I'm a Aircrete Harry fan! Between him and Haijar, my imagination has been awoken! The possibilities are endless. I will be designing my aircrete injector this summer! I will be making some aircrete mushrooms for yard decorations this summer!! Big ones!! HahAHA LOL
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  Ratios And What they Affect
  • chuckj  

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  @susan no not yet I study all stuff at domegaia and volunteering to help build a dome in Sedona Arizona I will be building my dome I’m in the process self education talking to community as domegaia and build myself . There’s many on site here that gave built domes offering services I can’t wait to build dome I’m mire studying as much as I can from domegaia volunteers helping others build domes
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  Catalan Dome's
  • franslaimbock  

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  Troubleshooting Aircrete
  • Zander  

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  So I tried to make a wall that is 6 feet long and 2 feet high with rocks added and fillers. The aircrete settled and became like dust. Help not sure what went wrong.
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  How much Drexel?
  drexel • • TayVG  

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  Supplier of Reinforcing fabric in Thailand??
  • santoshji  

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  Aircrete waterproof?
  • jrtorsa  

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  Anyone in North America done this to code / got occupancy permit?
  • spectrumjim  

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  AMAZING. Huge congrats. Thank you, I'll drop you an e-mail right now!
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  UL rating for AirCrete ???
  • Trey  

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  Trey, did you have any luck?