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AASHTO-American Association of State Highway and Transportation Officials
American Association of State Highway and Transportation Officials (AASHTO) Standards
The American Association of State Highway and Transportation Officials (AASHTO) is a leading organization that develops and publishes technical standards, specifications, guidelines, and industry resources for the transportation sector.
AASHTO standards cover a wide range of applications, including highway design, road construction, bridge engineering, transportation infrastructure, maintenance, public transit, railways, aviation, and water transportation.
Engineers, contractors, transportation agencies, and industry professionals rely on AASHTO publications to support infrastructure planning, design, construction, inspection, and maintenance while promoting safety, quality, and consistency across transportation projects.
At e-Standards Portal, you can explore AASHTO standards, technical specifications, and related publications to find the technical information you need for your engineering and transportation projects.
AASHTO R 92-18 PDF
This practice provides a means of evaluating the elastic behavior of an asphalt binder by using the ..
AASHTO R 93-19 PDF
This standard practice details the procedure for determining the service life of corrugated high-den..
AASHTO R 94-19 PDF
This practice covers procedures and test methods for quality assurance testing and job site quality ..
AASHTO R 95-22 PDF
This standard practice applies to hot-poured asphalt crack sealant used in the construction and main..
AASHTO R 96-19 PDF
This standard practice is for the initial installation, operation, and maintenance of an ignition fu..
AASHTO R 97-19 PDF
AASHTO R 97-19 covers the procedures for sampling of asphalt mixtures at point of manufacture, stora..
AASHTO R 98-20 PDF
AASHTO R 98-20 describes measuring size and shape of translucent glass beads used in traffic marking..
AASHTO R 99-21 PDF
This method covers the procedure for troubleshooting asphalt specimen volumetric differences between..
AASHTO RCCC-1-2025 PDF
The AASHTO Guide for Reducing the Cradle-to-Gate Embodied Carbon Emissions of Paving Concrete, First..
AASHTO RSDG-4-2011 PDF
AASHTO RSDG-4, Roadside Design Guide, 4th Edition (2011), presents a synthesis of current informatio..