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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 T 329-22 PDF
This method is intended for the determination of moisture content of asphalt mixtures by drying in a..
AASHTO T 330-22 PDF
The purpose of this standard is to identify the presence of harmful clays of the smectite group (poo..
AASHTO T 331-23 PDF
This method covers the determination of bulk specific gravity ( G mb ) of specimens of compacted asp..
AASHTO T 332-22 PDF
Incorporates the March 2026 Errata This method covers the procedures for determining acid-soluble ch..
AASHTO T 333-22 PDF
This method describes the measurement of the linear coefficient of shrinkage on cure of adhesive sys..
AASHTO T 334-08 PDF
AASHTO T 334-08 (2020) covers the determination of the cracking tendency of restrained concrete spec..
AASHTO T 335-09 PDF
This test method covers the determination of the percentage, by mass, of a coarse aggregate sample t..
AASHTO T 336-22 PDF
This test method covers determination of the coefficient of thermal expansion (CTE) of hydraulic cem..
AASHTO T 337-09 PDF
This test method determines the amount of metallic zinc in the dried paint film (nonvolatile matter)..
AASHTO T 338-09 PDF
This method is designed to determine the presence of hindered amine light stabilizer (HALS) in the p..