... %; Ash content, less than 10%; MgO, less than 5%. (2). Gypsum: dihydrate plaster stone or phosphogypsum, sulphur trioxide content, ≥35%. (3 ... : 600KG/m3;(2). Proportion: cement, 8%; Quicklime, 19%; sand, 70%; Gypsum, 3%; aluminium powder, 450g/m3; addictives: 400g/m3. (3). Each ... - 0.13Kcal/M.h°C Autoclaved areated concrete blocks and panels production line