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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 152-24 PDF
Incorporates the June 2026 Errata This method covers determination of the air content of freshly mix..
AASHTO T 153-22 PDF
This test method covers determination of the fineness of hydraulic cement, using the Blaine air perm..
AASHTO T 154-23 PDF
This test method covers the determination of the time of setting of hydraulic cement paste by means ..
AASHTO T 155-23 PDF
This test method covers laboratory determination of the ability of liquid membrane-forming compounds..
AASHTO T 157M/T 157-23 PDF
This method covers the testing of materials proposed for use as air-entraining admixtures in the fie..
AASHTO T 158M/T 158-23 PDF
These test methods cover the determination of the relative quantity of mixing water that will bleed ..
AASHTO T 160-22 PDF
This test method covers determination of the length changes that are produced by causes other than e..
AASHTO T 161-22 PDF
This method covers the determination of the resistance of concrete specimens to rapidly repeated cyc..
AASHTO T 164-24 PDF
These methods cover the quantitative determination of asphalt binder in asphalt mixtures and asphalt..
AASHTO T 165-02 PDF
AASHTO T 165-02 is identical to ASTM D1075-96 except provisions specified in this document.