AASHTO M 80-13 (2021) PDF Download

The AASHTO M 80-13 (2021) standard focuses on the specifications for coarse aggregate used in concrete, excluding lightweight aggregate. The standard provides descriptions and classifications for different classes and gradings of coarse aggregate. It should be noted that this specification is considered suitable for ensuring satisfactory materials for most concrete applications. However, depending on the nature of the project or the specific region, it may be either more or less restrictive than necessary.