... a light and porous building material. It is based on cement, lime, slag, fly ash, and sand. Detailed Product Description AAC plant1 ... . Drying methods: using autoclave3. Raw material: Fly ash(or Sand), cement, lime, gypsum, aluminum powder paste, etc.The autoclaved aerated concrete block ... steps are as follows:(1) The raw materials such as lime, cement, gypsum, sand(or fly ash), etc are stored in silo ...