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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 131-23 PDF
These test methods determine the time of setting of hydraulic cement by means of the Vicat needle. T..
AASHTO T 132-22 PDF
This method covers determination of the tensile strength of hydraulic cement mortars employing the b..
AASHTO T 133-22 PDF
This method covers determination of the density of hydraulic cement. Its particular usefulness is in..
AASHTO T 134-22 PDF
These methods of test are intended for determining the relation between moisture content and density..
AASHTO T 135-22 PDF
These methods of test cover procedures for determining the soil–cement losses, moisture changes, and..
AASHTO T 136-22 PDF
These methods cover procedures for determining the soil–cement losses, moisture changes, and volume ..
AASHTO T 137-22 PDF
This test method covers the determination of the air content of hydraulic cement mortar under the co..
AASHTO T 140-20 PDF
AASHTO T 140-20 covers the determination of compressive strength of concrete, using portions of beam..
AASHTO T 143-13 PDF
AASHTO T 143-13 (2021) describes the sampling of both solid and liquid forms of calcium chloride and..
AASHTO T 148-22 PDF
This test method covers determination of the thickness of a concrete pavement, slab, or structural e..