AASHTO issues materials standards maintenance guides

September 1st, 2022

The American Association of State Highway and Transportation Officials (AASHTO) has released the 42nd edition of its “Standard Specifications for Transportation Materials and Methods of Sampling and Testing, and AASHTO Provisional Standards,” commonly referred to as the “Materials Standards” publication. Developed by the organization’s Committee on Materials and Pavements, the guide contains specifications, recommended practices, test methods, […]

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