This standard specifies the terms and definitions, dimensional deviation, appearance quality and test methods for compression strength, breaking strength, block density, hollow ratio, water content, water absorption, relative water content, drying shrinkage value, softening coefficient, carbonization coefficient, frost resistance and impermeability of the concrete block and concrete perforated (hollow) brick.
This standard is applicable to small concrete hollow block, concrete solid block and concrete perforated (hollow) brick used for construction engineering (hereinafter referred to as blocks), and can provide reference for the concrete block (brick) used for water conservancy, traffic and municipal structures.
