Performance-Based Mix Design for Porous Friction Courses (2018) / Chapter Skim
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Pages 122-124
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From page 122... ...
122 Findings The following are important findings from this study: • The traditional pie plate test is inadequate to determine how well a PFC mix will perform. • PFC mixes are different from dense-graded mixes and cannot be designed for optimum AC at a specified air void level.
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From page 123... ...
Conclusions and Recommendations for Future Research 123 • Experimental results indicate the P-200 content is optimized between 4% to 6%, with some mixes showing a trend of improvement at even higher levels. Revision of the P-200 gradation range to 2% to 6% passing is proposed.
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From page 124... ...
124 Performance-Based Mix Design of Porous Friction Courses western states such as California, Nevada, and Arizona, and from midwestern states such as Texas and Oklahoma. • There is a need to evaluate field density of PFC mixtures to determine whether mixes are compacted in the field to the density obtained in the laboratory.
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