ASTM D1863-05

1.1 This specification covers the quality and grading of crushed stone, crushed slag, and water-worn gravel suitable for use as coarse mineral aggregate on built-up roofs.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

This specification covers the standards for the quality and grading of crushed stone, crushed slag, and water-worn gravel intended for use as coarse mineral aggregate on built-up roofs. The crushed stone and gravel shall be hard, durable, opaque, and free of foreign substances. The crushed slag, on the other hand, shall be hard, air-cooled, and free of as well of any foreign particles. The specimens shall comply with the gradation and physical requirements prescribed herein and shall undergo testing which include a gradation test, moisture test, unit mass test, dust, and hardness test.