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　　There are seven strength levels: A, A, A, A, A, and A　　 Block product marking: Mark in the order of product name (code ACB), strength level, bulk density level, specification size, product grade, and standard number.Xingtai Guangzong,　　When deformation occurs, it will not damage the internal structure. In addition, during vibration, due to the inertia force of the aerated brick　　 Blocks are classified according to their compressive strength and volumetric density.Shantou City,　　 Blocks are classified according to their compressive strength and volumetric density.　　Control standard for radioactive substances in building materials mixed with industrial waste - Determination of steady-state thermal resistance and related characteristics of insulation materials - Protective hot plate method for testing the performance of aerated concrete - General rules - Test methods for volumetric density, moisture content, 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.

　　as the main raw materials, 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, 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).　　Aerated blocks are divided into fly ash aerated concrete blocks and sand aerated concrete blocks,Xingtai GuangzongAerated block, among which fly ash autoclaved aerated concrete blocks　　 Block product marking: Mark in the order of product name (code ACB), strength level bulk density level, specification size, and standard number.Price,　　 Blocks are classified according to their compressive strength and volumetric density.　　 Blocks are divided into three levels based on dimensional deviation, appearance quality, volumetric density, first-class product (B), qualified product (C).　　 Blocks are divided into three levels based on dimensional deviation, appearance quality, volumetric density, and compressive strength: excellent product (A), first-class product (B), qualified product (C).

　　Specification for autoclaved aerated concrete blocks Scope This standard specifies the product classification, technical requirements, test methods, inspection rules, product quality instructions, stacking, and transportation of autoclaved aerated concrete blocks.Quality inspection report,　　If the purchasing unit needs other specifications, they can negotiate with the production factory to determine.　　 days so that the strength can reach the standard. At the same time, it is required that the brick body should not have cracks and the surface should be clean,　　There are six levels of volumetric density: B, B, B, B, B, and BXingtai Guangzong,　　This standard applies to autoclaved aerated concrete blocks (hereinafter referred to as blocks) used for walls and insulation in civil and industrial buildings.　　There are seven strength levels: A,Xingtai Guangzongaerated block brick, A, A, A, A,Xingtai Guangzongblock, A, and A　　There are seven strength levels: A, A, A A, A, A, and A