Dec. 16 webinar examines Marshall Hammer vs. Gyratory Compaction

Researchers based at Auburn University and the University of Nevada, Reno will discuss density findings obtained through Marshall hammer testing and Superpave gyratory compactors.

Marshall Hammer versus Gyratory Compaction: Validating Equivalence for P401 Mixtures will start at 2 p.m. ET on Dec. 16.

Randy West and Carolina Rodezno with the National Center for Asphalt Technology (NCAT) at Auburn University will present research alongside the University of Nevada, Reno’s Adam Hand on Dec. 16 as part of a webinar that determines the equivalent number of gyrations in a Superpave gyratory compactor to achieve the same density obtained by 50-blow and 75-blow compaction with a Marshall hammer.

Attendees will come away from the webinar with an understanding of the current options for asphalt mixture compaction in the Federal Aviation Administration’s (FAA) P401 specification, as well as how those options were developed.

Participants will also learn more about the approach used to validate the equivalent number of gyrations to 50-blow and 75-blow Marshall compaction as well as the experimental findings and recommendations of the study.