本标准适用于粘土陶粒和陶砂。以粘土、亚粘土等为主要原料,经加工制粒、烧胀而成的,其粒径在5毫米以上的轻粗骨料称为粘土陶粒;粒径小于5毫米的轻细骨料称为粘土陶砂。粘土陶粒和陶砂适用于保温用的、结构保温用的轻骨料混凝土,也可用于结构用的轻骨料混凝土。 This standard applies to clay ceramsite and clay sand. With clay and sub-clay as the main raw materials, the light and coarse aggregates with a diameter of more than 5 mm are called clay cerams; the light and fine aggregates with a particle size of less than 5 mm are called Clay clay sand. Clay ceramsite and clay sand are suitable for heat-insulating, light-weight aggregate concrete for structural insulation, and also for lightweight aggregate concrete for structural use.