Learn how to be an AASHTO lab 24/7

"“…if you do everything that the AASHTO accreditation requires you to do, if you execute all of the requirements of [AASHTO re:source], you will have a well-run laboratory."

Florida Department of Transportation

Tim Ruelke, P.E., Director, Office of Materials

55+ years of experience
PSP participants
samples shipped per year
laboratory assessments per year
accredited labs


2018 Additions to Accreditation and Assessment Scopes

Dec 18, 2018

In 2018, AASHTO re:source added the following standards to the scopes of AASHTO Accreditation and laboratory assessment:

  • AASHTO T 330 Standard Method of Test for The Qualitative Detection of Harmful Clays of the Smectite Group in Aggregates Using Methylene Blue
  • ASTM A956 Standard Test Method for Leeb Hardness Testing of Steel Products
  • Florida Corrosion Series
    • FM 5-550, Florida Method of Test For pH of Soil and Water
    • FM 5-551, Florida Method of Test For Minimum Resistivity of Soil and Water
    • FM 5-552, Florida Method of Test For Chloride in Soil and Water
    • FM 5-553 Florida Method of Test For Sulfate in Soil and Water
  • ASTM D6951 Standard Test Method for Use of the Dynamic Cone Penetrometer in Shallow Pavement Applications
  • AASHTO T 382/ ASTM D7226 Standard Method of Test for Determining the Viscosity of Emulsified Asphalt by a Rotational Paddle Viscometer
  • ASTM D3665 Standard Practice for Random Sampling of Construction Materials

Laboratories can sign up for these test methods on our website as part of their next on-site laboratory assessment.

If you would like us to add other standards to our scopes, feel free to mention them when submitting feedback, or email your request to our Quality Manager.