High temperature: aerated concrete at temperatures below 600 ℃, the light brick, the compressive strength increased slightly, when the temperature at about 600 ℃, its compressive strength compressive strength approaching normal temperature, so as a building material aerated concrete fire performance level up to the national fire safety standards. It is an excellent new building materials, and has environmental advantages. Autoclaved sand-lime brick production process, including raw material preparation, mixture preparation, brick molding, buy light brick, several major village autoclave curing processes and finished products. 1. sand and lime are the main raw materials to produce sand-lime brick, sand available river sand, brand light brick, sea sand, aeolian sand, light brick okay, depositing tailings sand and concentrator, etc., according to the sand different types and characteristics of mines were to take a different approach to mining. Lime production is mainly taken by calcining.