Aluminum paste is widely used in aerated concrete gas agent, aluminum thermal metallurgy, firecrackers, silver paint brush paper and other industries. The main usage of aerated concrete aluminum powder is aluminum powder make chemical reaction with silica and lime to release the gas in the production process, so that the production of concrete blocks within the formation of porous structure. In the ingredients process of aerated concrete block production process , adding the aluminum paste into the aluminum slurry mixing tank, after full mixing, adding into the aluminum slurry metering scale, and finally adding to into the pouring mixer lime together with Raw materials such as gypsum, fly ash, etc. Aluminum powder in the aluminum powder paste in the aerated concrete slurry can react with the alkaline material to release hydrogen, resulting in bubbles, so that aerated concrete slurry expansion to form a porous structure. So that aerated concrete blocks in general weight of 500-700kg / m3, only the equivalent of clay brick 1 / 4-1 / 5, ordinary concrete 1/5, is a lighter in the concrete. reducing the weight of more than 40% Than ordinary brick concrete structure of the building.