We get insights into the Asphalt Mixture Gyratory 55/56 sample rounds and share some tips to avoid common issues labs may encounter when running these tests.Related information: S4 E12:  August PSP Insights - Marshall and HveemUnboxing AASHTO re:source Proficiency Sample: Asphalt Mixtures Gyratory Design - HMG 55-56I Received A Low PSP Score, What Next?Send us a textHave questions, comments, or want to be a guest on an upcoming episode? Email [email protected]. Related information on this and other episodes can be found at aashtoresource.org.

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