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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 M 225M/M 225-09 PDF
This specification covers deformed steel wire that has been cold worked by drawing, rolling, or both..
AASHTO M 226-80 PDF
This specification covers asphalt binders graded by viscosity at 60°C (140°F) for use in pavement co..
AASHTO M 227M/M 227-19 PDF
This specification covers hot-wrought merchant quality carbon steel bars and bar size shapes produce..
AASHTO M 230-07 PDF
AASHTO M 230-07 (2020) covers extruded expanded polystyrene board used for lightweight fill or highw..
AASHTO M 231-95 PDF
This specification covers requirements for scales and balances, and the loose standard masses used w..
AASHTO M 232M/M 232-19 PDF
This specification covers zinc coatings applied by the hot-dip process on iron and steel hardware. T..
AASHTO M 233-86 PDF
This specification covers boiled linseed oil-petroleum spirits mixture to be applied to hardened por..
AASHTO M 235M/M 235-22 PDF
This specification covers two-component epoxy resin bonding systems for application to portland ceme..
AASHTO M 237-96 PDF
This specification covers epoxy resin adhesives for bonding traffic markers to pavement surfaces.
AASHTO M 240M/M 240-23 PDF
This specification pertains to blended hydraulic cements for both general and special applications u..