THE AERATION IS CAUSED BY A MIX OF VARIOUS MATERIALS MAINLY CONSISTING OF FLY ASH, QUICKLIME, CEMENT,GYPSUM, ALUMINUM POWDER AND PERFORMANCE ADDITIVES MIXED WITH WATER IN A HIGH-SPEED MIXER. AAC BLOCKS CONSISTS OF UP TO 80% AIR, THIS AERATED MATERIAL IS PROCESSED THROUGH AUTOCLAVING WHICH ENTAILS HIGH PRESSURIZED CURING OF AERATED MATERIALS AND THE RESULTANT PRODUCT IS FORMED HAVING CELLULAR STRUCTURE & KNOWN AS AAC ELEMENTS.