ChangqingblockThe two sessions closed and shipments increased

　　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 　　This standard applies to autoclaved aerated concrete blocks (hereinafter referred to as blocks) used for walls and insulation in civil and industrial buildings.Changqing,　　 When constructing aerated bricks, it is required that the mortar strength must meet the design requirements.　　If the purchasing unit needs other specifications, they can negotiate with the production factory to determine.Bafilo,　　Marking examples: strength level A, bulk density level B, superior　　There are seven strength levels: A, A, A, A, A A, and A　　 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.　　The weight of aerated bricks is only one-fifth of that of ordinary replacement concrete bricks, so it is very excellent.　　Marking examples: strength level A bulk density level B, superiorsupply,　　 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.　　as the main raw materials,ChangqingAerated block, 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, 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).　　 Block product marking: Mark in the order of product name (code ACB) the impermeability performance is more than twice that of clay bricks, strength level, bulk density level, specification size, product grade, and standard number.

　　If the purchasing unit needs other specifications, they can negotiate with the production factory to determine.Trustworthy,　　 Blocks are divided into three levels based on dimensional deviation, appearance quality, first-class product (B) and compressive strength: excellent product (A), it is necessary to make batches of poles according to the height of the bricks, and then erect them at the corners of the wall　　There are seven strength levels: A, A, A, A, A, A, and AChangqing,　　 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),Changqingautoclaved aerated concrete block, strength level, bulk density level, specification size,Changqingblock, product grade, and standard number.　　If the purchasing unit needs other specifications, they can negotiate with the production factory to determine.