... The Performance Advantage of AAC block Lightweight: Porosity achieve 70% to 85%, volume density is generally 500 ~ 900kg/m3, as ... the insulation effect of 20cm thick aerated concrete wall is equivalent to 49cm thick solid brick walls ordinary.Permeability: Result of ... environment: Manufacturing, transportation, all use the process of pollution, to protect arable land, saving energy, is one kind of a ...