These guide specifications provide guidance for developing transportation contract specifications and are the national standard for best practices in highway and road construction. This consensus-based guide ..... Read More
This 2020 3rd edition includes the following revisions and updates from the previous 2015 2nd edition: new fracture mechanics-based model for reflective cracking in AC overlays over flexible, ..... Read More
The AASHTO Materials Standards contain specifications, test methods, and provisional standards commonly used in the construction of highway facilities.
The Materials Standards are updated three times ..... Read More
Please Save the Date for the 2021 CRUO Annual Meeting! The safety and efficacy of an in-person meeting will be reevaluated in early Summer. If it is safe to have an in-person event, registration is planned to open in July.