Podcast: Aggregate Gradation & Gravity Sampling

The AASHTO re:source podcast recently released an episode delving into the new “aggregate gradation and gravity” section of its Proficiency Sample Program or PSP.

[Above image via AASHTO re:source]

AASHTO re:source – which launched this podcast series in September 2020 – is part of the engineering and technical services division of the American Association of State Highway and Transportation Officials.

It provides services and tools through three major programs: the aforementioned PSP service, its Laboratory Assessment Program, and the AASHTO Accreditation Program.

The new aggregate gradation and gravity sampling portion of the PSP service has been three years in the making, according to AASHTO re:source, and is designed to both streamline and reduce the cost of the group’s PSP service.

To listen to this podcast, click here.

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