原文传递 Implementation of New Quieter Pavement Research: Accelerated Pavement Testing and Laboratory Evaluation of Different Open-Graded Hot-Mix Asphalt Materials.
题名: Implementation of New Quieter Pavement Research: Accelerated Pavement Testing and Laboratory Evaluation of Different Open-Graded Hot-Mix Asphalt Materials.
作者: Wu, R.; Guada, I.; Coleri, E.; Rezaei, A.; Kayhanian, M.; Harvey, J.
关键词: Open Graded Friction Course (OGFC), Accelerated pavement testing, Mechanical durability, Asphalt materials, Rutting, Surface texture, Permeability, Guidelines, Hot-Mix Asphalt (HMA)
摘要: This study presented in this report is part of a long-term effort that started in 2005 to develop the specifications, guidelines, standardized laboratory and field test methods, and other information needed for quieter pavement research to be incorporated into standard Caltrans practices, and lead to quieter pavements. Based on an earlier laboratory study, several open-graded friction course (OGFC) mixes were selected for further evaluation with accelerated pavement testing using the Heavy Vehicle Simulator (HVS) and laboratory testing on plant-produced materials. These selected mixes had shown good overall laboratory performance in terms of durability and sound absorption, which is correlated with tire/pavement noise. The five test cells included three new OGFC mixes, with the Caltrans 3/8 inch mix serving as the control mix. The study examined the performance of the selected OGFC mixes in terms of their constructability, rutting performance, moisture damage susceptibility, surface texture, permeability, clogging susceptibility, clogging and rutting mechanisms, and tire/pavement noise. The #4P mixes offer superior noise and mechanical durability compared with the control mix. They have similar skid resistance as measured by Caltrans Test 342 and surface permeability. The Georgia 1/2 inch mix is likely to provide superior skid resistance and rutting performance compared to the control mix, although it could not be fully investigated in this project due to difficulties in getting it produced by local plants as designed. Based on the results from this study, it is recommended that several pilot sections be placed using a rubberized binder.
报告类型: 科技报告
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