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TitleHOW TO MAKE AIRCRETEAircrete Garden Boxes PART 3.6 - Air Crete Lightweight Foam Concrete from Portland CementHow To Build Your AirCrete Tiny HouseMy AirCrete Sucks! How Would I Build a Tiny House With It - Why it Deflates
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Source TypeWebsiteVideoVideoVideo
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Linkhttps://diyaircrete.com/howtomakeaircrete/https://www.youtube.com/watch?v=N9EKXTTA7v0https://www.youtube.com/watch?v=TJBl9nV_npghttps://www.youtube.com/watch?v=9EPKRJcOLNU
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Kind of cementPortland CementPortland CementPortland CementN/A
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Kind of soapDawnSuave ShampooSeven Gerenation Soap or DrexelAccion/Drexel
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Mixing vessel55 gallon barrel50 gallon drumN/A
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Amount of cement with units94 lb15 lb92 lbN/A
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Amont of water for slurry with units6 gal8.4 lb6 and 1/2 gallons of waterN/A
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Amount of soap with units16 oucnes15 ounces16 ouncesN/A
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Amount of water added to soap mixture with units5 gal2.5 gallons5 gallon bucketN/A
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How was foam addedN/AFrom the TopN/AN/A
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Check for foam density90-100 grams/quartN/A95 grams/quart90-100 grams/liter
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Amount of foam addedN/A0.75 lbN/AN/A
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Step 1fill a 5 gallon bucket with water and add 2 cups dawn detergent (diluted 40/1 with water) or your preferred foaming agent.Dilute 15 fluid ounces of shampoo to 2.5 gallons of water and mix with a paint mixer on a low settingAdd 6 and 1/2 gallons of water to the 50 gallon drumN/A
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Step 2create foam with your compressor and foam generatorAdd it to foam machineFill a 5 gallon bucket 2/3 with water and then add 16 ounces with Seventh Generation or 4 ounces of Drexel and mixN/A
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Step 3Collect foam in quart container and weigh it on scale. Adjust your air pressure until you achieve the foam density between 90-100 grams. More air pressure reduces the weight of your foam. Less air pressure will increase the weight/density of your foam.Add 8.4 lb of water into a 5 gallon bucket and mix with 15 lb of cement with a pinch of glass fiberFill the bucket to the top with waterN/A
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Step 4In a 55 gallon barrel, add 6 gallons of water and mix in a 94 lb bag of cement.Use a wooden dowel to hand stir the cement mix to free up any clumps.Prime the pump for the foam machine and fill the 1 quart bucket with foam and remove the excess and mreasure it to 95 grams/quartN/A
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Step 5Thoroughly incorporate foam into the 55 gallon barrel containing your cement slurry until you reach 45 gallons full. (30″ inches high)Turn on the foam machine and once the foam is thicken add to the slurry pail to the 8 inch mark on a 5 gallon pail.Start mixing 92 portland cement into the drum with water while making sure no cement is clumping at the bottomN/A
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Step 6Pour into forms or molds and allow to harden over night. It takes approx. 30 days for concrete to cure but aircrete can typically be de-molded, cut and assembled after 24 hrs.Using a paint mixer, blend it all evenly.Turn on the foam machine and add it 50 gallon drum and mix continueously until it filled to the 6 cubic foot mark (which is about 27 inches from the bottom of a standard metal drum) and turn off the foam machineN/A
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Step 7Hand-stir to make sure that everything was blending right to the bottom of the pailMix throughly by raising the mixer up and down to get an even dispersal of the foam in the cement.N/A
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Other notesPopular aircrete foaming agents include: Drexel, a commercial agricultural foaming agent (dilute 160/1 – 4 oz per 5 gallons of water) Drexel is one of the more effective foaming agents but does come with a warning label regarding skin irritation. Exercise caution when using product or foam around pets or children. Dawn or Seventh Generation Natural Dish detergent. (Dilute 40 parts water to 1 part detergent or 5 gallons water / 2 cups detergent) ​ Suave clarifying shampoo: (30oz or 4 cups per 5 gallons) * Note 2 tablespoons of Vegetable glycerin can be added to increase foam and density of shampoo or dish soap used.His mix was kind of different in a way that he was trying to fill a 36 in form.Compared to Domegaia's recipe, the amount of cement is different by 2 lb and the alternitive foaming agent is drexel.The kind of soap matters. Glycerin also might be a factor that helps the foam keep its shape. So if a bottle is sitting for too long, be sure to shake or pour it back and forth to mix the glycerin witht the soap.
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electric mixer or drill with concrete mixing paddle at least 8 amp drill . It’s recommended to use a heavy duty commercial grade drill for mixing of cement. These are designed for regular repeated use. (1800W 2 paddle mixer)This person also added reinforcement like glass fiber to add strength to the aircrete.
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In his second test, he added 0.5 lb of foam and 0.9 lb of perlite.
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Take awayMake sure soap in contianer is well mixed so glycerin is re-constituted
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