The invention relates to reuse of wastes, in particular relates to an application of waste residues in aerated concrete blocks and adjustment in production of the aerated concrete blocks. According to the invention,
coal ash is replaced by high
chlorine silicon slag slurry to provide strength subsidy after steam curing. Meanwhile, part of stone
powder is replaced by the high
chlorine silicon slag slurry, so that the dosage of limestones or
quartz sand can be saved. The high
chlorine silicon slag slurry mainly exists in form of fine
silicon oxide and
sodium chloride, and the specific surface area even can reach 300-350 sq / g, the use amount of the stone
powder can be reduced since part of stone
powder is partially replaced, and the
energy consumption and the cost caused by a
grinding process are reduced. By controlling the specific surface area (220+ / -10mm) of the mixed slurry and keeping a certain density, the problem of insufficient foaming or collapse as the slurry is too thick or too thin is solved. By taking an aluminum powder
single product as a
foaming agent, a compound foaming process of combining the aluminum powder with part of K12(lauryl
sodium sulfate) or
sodium dodecyl sulfate can be adopted. The
mass fraction of the aluminum powder to K12 is 8: 2 or 9: 1. The uniformity and stability of bubbles are better. By adjusting the
mass fraction, the foaming speed and
controllability are higher. According to the invention, a foam stabilizer is also introduced, for example, resins,
acacia gum, bone glue and the like, so that the
production quality stability is guaranteed.