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Evaluation of Variable Friction Properties of FDOT Friction Courses: Phase 1. Final rept.
| 题名： | Evaluation of Variable Friction Properties of FDOT Friction Courses: Phase 1. Final rept. |
| 作者： | Jackson-N.M. |
| 关键词： | *Pavements-; *Friction-course; *Highways-.;Roads-; Maintenance-management; Materials-; Safety-. |
| 摘要： | The report provides evidence that recent specification changes made to improve the performance of FDOT friction courses have not significantly increased the variability of FN(40R) values on Florida roadways. Based on preliminary data, it is anticipated that the new FC-5 and FC-6 mixes will exhibit improved durability without compromising historical frictional performance. It is further pointed out that recent technological advances in mobile testing equipment, specifically lasers, now make it possible to measure pavement texture in conjunction with friction characteristics. This advanced technology could enhance the safety and productivity of the FDOT skid-testing program. There is also great potential for implementation of supplemental laboratory testing to further characterize the polish/friction potential of aggregate sources throughout Florida. Recommended laboratory test methods to be considered include the Accelerated Polishing Wheel, the British Pendulum Tester, and petrography, among others. |
| 报告类型： | 科技报告 |
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