This standard specifies the terms and definitions, product categories, specifications, grades and marks, technical requirements, test methods, inspection rules, signs, packaging, transportation and storage of sintered hollow bricks and hollow blocks. This standard applies to clay, shale, coal gangue, fly ash, silt (silt from rivers, rivers, lakes, etc.), construction dregs and other solid wastes as the main raw materials, which are roasted and mainly used in buildings. Hollow bricks and hollow blocks in non-load-bearing parts (hereinafter referred to as hollow bricks and hollow blocks).
GB/T 13545-2014 Referenced Document
GB 6566 Limits of radionuclides in building materials
GB/T 18968 Terms of wall materials*, 2019-08-30 Update