... small (for example coal ash.Mixing calcium material lime cement water to a special slop,then add the aluminum dust ... AAC brick,autoclave aerated concrete block,concrete block machine,light weight blockAAC block machine, AAC block producing line, light weight block producing line best offer with ... 2 annual capacity 300,000M3.3 set raw material proportion: cement 6.5%, raw lime 23%, flyash 68%, gypsum 3%, ...