The role of aluminum in Silver Arrow aerated aerated concrete is carried out in a slurry in a chemical reaction, gas evolution and formation of small and uniform pores, making aerated concrete has a porous structure. Density of aerated concrete basic constituent materials generally about 1.8 ~ 3.1g / cm3, and the bulk density of the aerated concrete products is usually 500 ~ 700kg / m3, or even lower. Thus, aerated concrete must have a greater porosity, generally made of gas expansion phase slurry system requirements than the amount of expansion of the slurry or nearly 1 times 1 times, therefore, requires the hair air materials can provide a lot of, insoluble or poorly water-soluble gases. In order for these gases can be formed appropriately sized, uniformly sized spherical bubble in the slurry, and can remain stable without deformation and fracture, in addition to the slurry itself to have a certain temperature, consistency and other conditions outside, suitable foam stabilizer is very important. We provide gas, said material is made gas agents, said the effect of the bubble from a solid material to foam stabilizer. The type of gas former, there are many, it can be divided into two major categories of metal and non-metal. Metal gas former aluminum zinc, magnesium powder or paste, aluminum, zinc alloys and silicon iron alloy. There are non-metallic hydrogen peroxide, calcium carbide and so on.