METHOD OF PRODUCING CELLULAR CONCRETE ARTICLES AND MIXTURE FOR PREPARING CELLULAR CONCRETE Russian patent published in 2005 - IPC

FIELD: construction.

SUBSTANCE: method comprise preparing cellular concrete mixture, filling the mixture, staying the mixture for a time period, dismounting the formwork, cutting, and autoclave treating. The cutting is carried out in two stages. In the first stage, when the mixture reaches plastic strength, A₁, the "crust" is cut out. In the second stage, upon the strength reaches the plastic strength A₂, the article is cut into blocks of given sizes The ratio of the strength values should be A₁/A₂ = 3.2-4.1. The cut concrete part is used for preparing cellular concrete mixture. The mixture for cellular concrete comprises cement, sand, water, aluminum powder, and lime. The water mass required for preparing the mixture is determined form the formula proposed.

EFFECT: reduced labor consumptions.

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