What is an aerated block?

Aerated block is a light and porous new building material. The aerated block produced by aerated block equipment has the advantages of light bulk density, high thermal insulation efficiency, good sound absorption and good processability, and can be made into wall blocks, thermal insulation blocks, pressure plates, floors, wallboard and thermal insulation pipes. Aerated block has been widely used in industrial and civil buildings and pipeline insulation in China and has become an important part of new building materials. Aerated blocks are divided into fly ash aerated concrete blocks and sand aerated concrete blocks. Among them, fly ash autoclaved aerated concrete blocks are prone to problems such as wall cracking and hollowing after being used in construction projects because of their high water absorption and large drying shrinkage. From 20 14, 65438+ 10 and 1, Huai 'an will eliminate fly ash aerated concrete blocks in the city's construction projects, and promote the application of self-insulation autoclaved sand aerated concrete blocks for external walls and autoclaved sand aerated concrete blocks for internal partitions. All design units are required to indicate the strength, bulk density, thermal conductivity, specifications and other parameters of materials in the design documents when selecting materials.