John Malusky and Ryan LaQuay from the Proficiency Sample Program (PSP) join us to discuss the results of the recent Aggregate Gradation and Gravity samples 3 and 4. Plus, share in our excitement as we discover the benefits of using slide lock bags in the PSP packaging process. 

Related information:

• S4 E14: S4 E14: August PSP Insights - Polymer-Modified Emulsified Asphalt
• S4 E13: August PSP Insights - Gyratory
• S4 E 12: August PSP Insights - Marshall and Hveem
• I Received A Low PSP Score, What Next?
• S3 E23: September PSP Insights

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