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).　　There are six levels of volumetric density: B, B, B, B, B, and BShanghe, it can be made into wall blocks, insulation blocks, pressure panels, floor slabs, wall panels, and insulation pipes,　　Marking examples: strength level A, bulk density level B, superiorMarcala,Shanghe block,　　There are six levels of volumetric density: B, B, B, B, B, and B　　This standard applies to autoclaved aerated concrete blocks (hereinafter referred to as blocks) used for walls and insulation in civil and industrial buildings.　　 Block product marking: Mark in the order of product name (code ACB), strength level, bulk density level, specification size, and standard number.

　　 Block product marking: Mark in the order of product name (code ACB), strength level, bulk density level specification size, product grade, and standard number.　　Starting from January , , Huai&#;an City will phase out fly ash aerated concrete in construction projects throughout the city　　 Blocks are classified according to their compressive strength and volumetric density.Focus on Development,　　This standard applies to autoclaved aerated concrete blocks (hereinafter referred to as blocks) used for walls and insulation in civil and industrial buildings.　　 Block product marking: Mark in the order of product name (code ACB), strength level, bulk density level, specification size, product grade, and standard number.　　 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).

　　as the main raw materials, with an appropriate amount of aerating agent, regulator, bubble stabilizer added, pouring, static stopping, cutting, 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).High quality brand,　　There are six levels of volumetric density: B, B,Shangheaerated block brick, B, B B, and B　　It can preserve the strength of concrete while reducing its own weight, thereby reducing the load on the entire building. According to professionals　　There are seven strength levels: A, A A, A, A, A, and AShanghe,　　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, and water absorption of aerated concrete - Mechanical properties of aerated concrete - Test methods for drying shrinkage of aerated concrete - Test methods for frost resistance of aerated concrete ( - Terminology of bricks and blocks Product classification Specifications: The specifications and dimensions of the blocks are shown in Table 　　 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 seven strength levels: A,ShangheAerated block, A, A, A, A, A, and A