Aircrete dome homes – strong, cheap and long-lasting

Aircrete blocks are quick to construct with and are easily cut on-site meaning very little wastage, saving time and money. They tend to be cheaper than wood frames.

Autoclaved Aerated Concrete (AAC) is an eco-friendly building material, made from natural raw materials such as: sand (or fly-ash), or ash from a power plant, cement, lime, gypsum, aluminium powder and water. This mix creates an aerated concrete providing insulation, structure and fire protection in one lightweight product.

One of the comments under this YouTube video is from an aircrete enthusiast who makes his own. I might try it my self!
It is an ultra light masonry product, weighing only 1/5 of the weight of ordinary concrete. It is composed of 1 part water, 1 part cement (which is powdered or ground limestone), 1 part non toxic dish soap. The detergent is foamed using air from a compressor and a pump or motor to agitate the mixture (I use a conventional drill and paint mixer to blend it all together and it works fine). The expansion of trapped materials results in ”air” or oxygen molecules which comprise the majority of the material (I believe close to 80%) upon expansion. It’s fire proof, water proof, insulating, bulletproof (U.S Army used the foam for ballistic testing, look it up) and earthquake proof, hurricane and monsoon proof, impervious to insects, rodents provides acoustic insulation and is 100% free of toxic of harmful substances, which makes it 100% biodegradable and completely recyclable.