Performance engineered mixes (PEM) were the focus of a two-day meeting at ACPA headquarters in Rosemont on Feb. 27 and 28.

Members of the Transportation Pooled Fund PEM Technical Advisory Committee (TAC) discussed the need and vision for the program, the strategy, and other specifics of the program.   FHWA, state highway agencies, and industry presented perspectives and updates, with Jerry Voigt representing contractors and other ACPA members’ interests.  Group discussions and other business, including future meetings and other events of interest were also on the agenda for the second day.

One of the goals for the program is for agencies to specify and contractors to deliver durable concrete pavements every time.   The program is based on measuring and controlling the concrete mixture around engineering properties that relate to performance, according to information produced by the CP Tech Center.