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simple and inexpensive to produce foam required to achieve BCU.For the 180l mixer (about 120l useful) I used a recipe of 3 buckets of sand, cement half past one, depending on how water is wet sand (7-10l), and foam. Recipespumogen foam is 3% and the rest water (theoretically). Basically I used 50 ml per liter of water, is 5%, and for a "portion" of the BCU we used 1.5 l of 5% solution spumogen.My impression was that temperature influences the quality of the foam solution,

but I tried to study this thing, but I found that if the solution is heated by the sun, the foam was more "fluffy".Of course the recipe can be modified, but I'm happy with what came out. Probablya BCU of 900-1000 kg / m, quite mechanically stable (more stable than what I saw on the block traders BCU).

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