... bulk cement. (5). Fly ash: carbon content, less than 3%; (6). Sand: SiO2 content, more than 85%; Clay content, less than 3 ... Finished products: 600KG/m3;(2). Proportion: cement, 8%; Quicklime, 19%; sand, 70%; Gypsum, 3%; aluminium powder, 450g/m3; addictives: 400g/m3 ... Body of bearing wall and nonbearing wall, multifloor (less than 6 floor) bearing wall blocks, insulating blocks and wallboard.E. ...