Investigation of Medium-Term Performance of Porous Asphalt and Its Impacts on Tire/Pavement Noise
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Published:2023-12-25
Issue:1
Volume:14
Page:64
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ISSN:2075-5309
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Container-title:Buildings
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language:en
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Short-container-title:Buildings
Author:
Wu Hao1, Wang Ge2, Li Mingliang1, Zhao Yue2, Li Jun1ORCID, Han Dingding1, Li Pengfei3
Affiliation:
1. Key Laboratory of Transport Industry of Road Structure and Material, Research Institute of Highway Ministry of Transport, Xitucheng Road No. 8, Beijing 100088, China 2. Jiangsu Expressway Engineering Maintenance Limited Company, Shantou Road No. 2, Huai’an 223000, China 3. School of Civil and Transportation Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
Abstract
To assess the medium-term performance of porous asphalt pavement during service and its influence on tire/pavement noise level, a seven-year continuous observation and data analysis study was conducted. Key performance indicators were measured and calculated by using automated pavement technology testing equipment. The noise levels were tested by using the on-board sound intensity (OBSI) method on three types of porous asphalt pavements (PUC-10, PAC-13, and PUC-10 + PAC-13) and one dense thin layer course (DTC) for comparison. The findings indicated that the Damage Rate (DR) and Surface Friction Coefficient (SFC) of porous asphalt pavements diminished greatly over time, while the International Roughness Index (IRI) and Rut Depth (RD) remained relatively stable. The two-layer porous asphalt pavement showed the largest noise reduction over the medium-term. Compared to DTC, the OBSI noise levels of these structures were lower by 2.09 dB, 1.53 dB, and 2.88 dB, respectively. The OBSI was found to be closely correlated with the SFC, IRI, test speed, lane, and pavement type. The RD had a notable effect on the OBSI in PUC-10 pavements. In PUC-10 + PAC-13 pavements, a significant linear relationship was observed between the OBSI and SFC. This is mainly because of the polishing of the coarse aggregates, which leads to micro-texture reduction, high frequency noise increase, and SFC decrease. This study makes a valuable contribution to understanding the laws of porous asphalt pavement performance changes and the relationship between tire/pavement noise and pavement characteristics.
Funder
General Projects of Beijing Natural Science Foundation Research Institute of Highway Ministry of Transport Research Project of Jiangsu Communications Holding Company
Subject
Building and Construction,Civil and Structural Engineering,Architecture
Reference39 articles.
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