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    • Development of guidelines for PG binder selection for Wisconsin 

      Bahia, Hussain; Nam, Kitae; Delgadillo, Rodrigo (Wisconsin Highway Research Program, 2004-12)
      In 1997, the Wisconsin DOT made the transition to use PG binders in place of the Penetration and Viscosity graded asphalts that had been historically used. The decision at that time to specify the PG 58-28 as the standard ...