ASTM D6155-19 PDF Download

The ASTM D6155-19 standard addresses the use of coarse aggregates that are not traditionally utilized in bituminous paving mixtures. These nontraditional aggregates must be hard, strong, and durable, with no adherent coatings. The standard outlines specific requirements for grading and physical properties, such as degradation, expansion, and environmental stability, which must be tested and adhered to.

The standard highlights that nontraditional aggregates are defined as any aggregates other than those described in other specifications, such as crushed stone, crushed hydraulic-cement concrete, crushed blast-furnace slag, steel furnace slag, and crushed gravel. These aggregates should be suitable for use in asphalt paving mixtures, as described in Specification D3515 or D4215.

It should be noted that the specification includes explanatory notes and footnotes, which provide additional information but are not considered requirements of the standard. Additionally, the standard references sieve sizes, which are identified by their standard designation as specified in Specification E11, with alternative designations given for informational purposes only.