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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 338-21 PDF
This specification covers hot-poured asphalt crack sealant graded by performance. Upon grading for p..
AASHTO M 339M/M 339-22 PDF
This specification covers requirements for thermometers used in the testing of construction material..
AASHTO M 33M/M 33-22 PDF
This specification covers bituminous preformed expansion joint filler for use in concrete constructi..
AASHTO M 340-22 PDF
A chip seal is an application of emulsified asphalt, followed immediately by an application of a sin..
AASHTO M 341-22 PDF
This standard covers requirements for emulsified asphalt, aggregate, mineral filler, and water used ..
AASHTO M 342-22 PDF
This standard covers requirements for emulsified asphalt, aggregate, mineral filler, water, and addi..
AASHTO M 343-22 PDF
This standard specifies quality requirements for emulsified asphalt as used for fog seals. A fog sea..
AASHTO M 344-22 PDF
This standard specifies quality requirements for aggregate and emulsified asphalt for sand seals on ..
AASHTO M 345-22 PDF
A scrub seal is the application of emulsified asphalt with a scrub broom followed immediately by an ..
AASHTO M 346-22 PDF
This standard covers the requirements for polymer-modified emulsified asphalt, performance graded as..