Block product marking: Mark in the order of product name (code ACB), strength level, specification size product grade, all versions shown are valid. All standards will be revised and standard number.　　 The following standards contain provisions that constitute the provisions of this standard by reference in this standard. At the time of publication of this standard, and all parties using this standard should explore the possibility of using the latest versions of the following standards.Jinan Overpass,　　 When constructing aerated bricks, it is required that the mortar strength must meet the design requirements.　　Marking examples: strength level A, bulk density level B, superiorGold Coast,　　as the main raw materials, regulator, bubble stabilizer added, and processed through batching, mixing, pouring, static stopping, cutting, and high-pressure steam curing. The unit volume weight of autoclaved aerated concrete blocks is one-third of that of clay bricks, and the insulation performance is - times that of clay bricks, The sound insulation performance is twice that of clay bricks, the impermeability performance is more than twice that of clay bricks, and the fire resistance performance is - times that of reinforced concrete. The masonry strength of the block is about % of its own strength (% for red bricks).　　Marking examples: strength level A, bulk density level B, superior　　If the purchasing unit needs other specifications, they can negotiate with the production factory to determine.

　　There are seven strength levels: A, A, A, A, A A, and A　　 When laying aerated bricks, the distance between the bottom of the wall needs to be filled with small solid bricks, but the maximum cannot exceed　　 Block product marking: Mark in the order of product name (code ACB),Jinan OverpassAerated block, strength level, bulk density level, specification size, product grade, with an appropriate amount of aerating agent, regulator, bubble stabilizer added, and processed through batching, mixing, pouring, static stopping, cutting, and high-pressure steam curing. The unit volume weight of autoclaved aerated concrete blocks is one-third of that of clay bricks,Jinan Overpassautoclaved aerated concrete block, and the insulation performance is - times that of clay bricks, The sound insulation performance is twice that of clay bricks, the impermeability performance is more than twice that of clay bricks, and the fire resistance performance is - times that of reinforced concrete. The masonry strength of the block is about % of its own strength (% for red bricks).　　 The following standards contain provisions that constitute the provisions of this standard by reference in this standard. At the time of publication of this standard, all versions shown are valid. All standards will be revised, and all parties using this standard should explore the possibility of using the latest versions of the following standards.

　　This standard applies to autoclaved aerated concrete blocks (hereinafter referred to as blocks) used for walls and insulation in civil and industrial buildings.Quality recommendation,　　 Block product marking: Mark in the order of product name (code ACB), strength level, bulk density level,Jinan Overpassaerated block brick, specification size, product grade and standard number.　　The weight of aerated bricks is only one-fifth of that of ordinary replacement concrete bricks, so it is very excellent.　　If the purchasing unit needs other specifications, they can negotiate with the production factory to determine.Jinan Overpass,　　 The following standards contain provisions that constitute the provisions of this standard by reference in this standard. At the time of publication of this standard, all versions shown are valid. All standards will be revised, and all parties using this standard should explore the possibility of using the latest versions of the following standards.　　There are six levels of volumetric density: B, B, B, B, B, and B　　Marking examples: strength level A, bulk density level B, superior