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From page 3...
... 3 Background Porous Friction Course (PFC) has been used in Europe and the United States for many decades.
From page 4...
... 4 Performance-Based Mix Design of Porous Friction Courses those that are most discriminating of successful performance were selected for the design procedure. This research included determining the optimum asphalt content and evaluating the effect of dust and fiber content of the mixes along with using lab performance tests to help determine performance threshold criteria.

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