Fly ash roof thermal insulation aerated concrete is a porous, lightweight, thermal insulation and thermal insulation concrete material made by adding fly ash, lime, gypsum, water and air-entraining agent to cement slurry, and then curing by mechanical mixing . Fly ash autoclaved aerated concrete blocks are prone to wall cracks, hollowing and falling off after being used in construction projects due to high water absorption and large drying shrinkage.
Since January 1, 2014, Huai'an City will eliminate fly ash aerated concrete blocks in construction projects throughout the city, and promote the application of self-insulating autoclaved sand aerated concrete blocks for external walls and autoclaved internal partition walls Sand aerated concrete block. And require each design unit to indicate the strength, bulk density, thermal conductivity, specifications and other parameters of the material in the design file when selecting it.
