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Porous Friction Course (PFC) mixtures are designed with an open aggregate structure to yield high inplace air voids (i.e., typically between 15 and 20 percent). This allows rainwater to drain horizontally through the layer toward the edge of the pavement structure, thereby improving pavement surface friction.

The TRB National Cooperative Highway Research Program's NCHRP Web-Only Document 305: Validation of a Performance-Based Mix Design Method for Porous Friction Courses is designed to assist state highway agencies in implementing the proposed performance-based mix design procedure, verify if the thresholds proposed in the procedure could be achieved, and refine the procedure if needed.

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Suggested Citation

National Academies of Sciences, Engineering, and Medicine. 2021. Validation of a Performance-Based Mix Design Method for Porous Friction Courses. Washington, DC: The National Academies Press. https://doi.org/10.17226/26333.

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Publication Info

34 pages |  8.5 x 11 |  DOI: https://doi.org/10.17226/26333
Chapters skim
Front Matter i-vi
Chapter 1. Introduction 1-2
Chapter 2. State of Practice 3-9
Chapter 3. Experimental Design 10-14
Chapter 4. Results and Analysis 15-22
Chapter 5. Conclusions 23-24
References 25-25
Appendix A. Detailed Test Results 26-27

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