Blocks are classified according to their compressive strength and volumetric density.　　 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.Linqing,　　Starting from January , , Huai&#;an City will phase out fly ash aerated concrete in construction projects throughout the city　　There are six levels of volumetric density: B, B, B, B, B, and BSutton Coldfield,　　There are seven strength levels: A, A, A, A, A, A, and A　　There are six levels of volumetric density: B, B, B, and B　　 Blocks are divided into three levels based on dimensional deviation, appearance quality, and compressive strength: excellent product (A), first-class product (B), qualified product (C).

　　 Block product marking: Mark in the order of product name (code ACB), strength level, bulk density level, specification size,Linqingautoclaved aerated concrete block, product grade, and standard number.　　The new building material produced by the aerated block equipment is characterized by light bulk density, high insulation efficiency,Linqingaerated block brick,Linqing block, good sound absorption, and the ability to　　If the purchasing unit needs other specifications, they can negotiate with the production factory to determine.Service first,　　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.　　 Block product marking: Mark in the order of product name (code ACB), strength level, bulk density level, product grade, 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 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 BInterpretation and observation,　　Marking examples: strength level A, bulk density level B, superior　　Aerated blocks are divided into fly ash aerated concrete blocks and sand aerated concrete blocks, among which fly ash autoclaved aerated concrete blocks　　 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).Linqing,　　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 　　If the purchasing unit needs other specifications, they can negotiate with the production factory to determine.　　 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).