AASHTO M 226-80 (2021) PDF Download

The AASHTO M 226-80 (2021) standard provides guidelines for the characterization and selection of asphalt binders used in pavement construction. The specification focuses on grading the asphalt binders based on their viscosity at a temperature of 60°C (140°F).

The standard offers three sets of limits for the graded asphalt binders, allowing the purchaser to choose the appropriate table of limits based on their specific requirements. These limits help ensure the consistency and performance of the asphalt binders in different environmental conditions and traffic loads.

By specifying the viscosity-graded asphalt binders according to this standard, it becomes easier for highway and construction agencies to select and procure asphalt binders that meet their project's specific needs. This helps to ensure the quality and durability of the pavement construction and helps optimize performance and longevity of the asphalt pavements.