... methods: using autoclave3. Raw material: Fly ash(or Sand), cement, lime, gypsum, aluminum powder paste, etc.The autoclaved aerated concrete block ... is grinded into slurry with water, and then mixed with lime powder, proper cement, gypsum and aluminum powder paste and finally ... steps are as follows:(1) The raw materials such as lime, cement, gypsum, sand(or fly ash), etc are stored in ...