... New wall material machine3.Very good Future prospect4.Sand or Fly ash aac blockIntroduction of 20,000-300,000m3/ year AAC ... 300, 000m3 /year,2. Drying methods: using autoclave3. Raw material: Fly ash(or Sand), cement, lime, gypsum, aluminum powder paste, etc.The ... technologies can be adopted to produce aerated concrete block. Generally, fly ash or silica sand is grinded into slurry with water, and ...