GB/T 25993-2010 English PDF (GBT25993-2010)

This Standard specifies the terms and definitions, formats, grades and markings, general provisions, technical requirements, test methods, inspection rules and product certification, stacking and transportation of permeable paving bricks and permeable paving flags. This Standard applies to permeable paving bricks and permeable paving flags (hereinafter referred to as permeable blocks) that meet the permeable requirements and are laid in municipal sidewalks, garden landscape paths, non-heavy-loaded pavement squares and other occasions. The permeable blocks can be made of unreinforced cement concrete through vibration pressurization or other molding processes; they can also be made of inorganic non-metallic materials such as coal gangue, waste porcelain pieces, waste pottery pieces and clay as the main raw materials through a sintering process.