Autoclaved sand-lime brick is sand and lime as the main raw material price of light brick, allowing the incorporation of pigments and additives, the stock preparation, pressing, high-pressure steam curing made of ordinary sand-lime brick. Autoclaved sand-lime brick (hereinafter referred to as sand-lime brick) is a mature technology, excellent performance and energy-efficient new building light brick wall, it is suitable for multi-layer hybrid bearing wall structure of the building. Our research and development since 1958 autoclaved lime sand brick, in 1960 from the former East Germany to introduce sixteen hole rotary PRESS in Beijing built autoclaved sand-lime brick production line, and later developed eight-hole rotary press, greatly promoting the development of autoclaved lime sand brick, making it have sand, lime and clay resources in the region and lack of resources of the main wall material. (1) Product Specifications GB GB11945-1999 specified in the shape of rectangular brick hexahedral brick nominal size length 240mm, width of 115mm light brick okay, height 53mm. Production Other sizes products, consultation and production is determined by the user. (2) the mechanical properties specified in the GB11945-1999 MU10, MU15, MU20, MU25 four intensity levels, see Table 2-7