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本标准适用于页岩陶粒和陶砂。由粘土质页岩、板岩等经破碎、筛分,或粉磨成球,烧胀而成的,粒径在5毫米以上的轻粗骨料称为页岩陶粒;粒径小于5毫米的轻细骨料称为页岩陶砂。页岩陶粒按其工艺方法分为:经破碎、筛分、烧胀而成者称为普通型页岩陶粒;经粉磨、成球、烧胀而成者称为圆球型页岩陶粒。
This standard applies to shale ceramsite and clay sand. The light and coarse aggregates with a diameter of more than 5 mm are called shale ceramsites, which are made of clay shale, slate, etc., broken, sieved, or ground into balls. The lightweight aggregate is called shale pottery sand. Shale ceramsite is divided into the following types according to its technological methods: those that have been broken, sieved, and swelled are called ordinary shale ceramsites; those that have been ground, balled, and swelled are called spherical shales. Ceramic grain.