John, Ryan, and Joe are back to discuss the most recent Asphalt Mixture Marshall and Hveem proficiency samples. This was the first year the Hveem sample was separated by compaction method - what does that mean for your lab, and what did we learn?

Related information: 

• Changes to the Asphalt Mixture Hveem Design Samples 
• Francis Hveem Testing the Limits of His Abilities
• Unboxing AASHTO re:source Proficiency Sample: Asphalt Mixtures Marshall & Hveem Designs

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Related information on this and other episodes can be found at aashtoresource.org.