Friction Prediction in Asphalt Pavements: The Role of Separated Macro- and Micro-Texture Parameters Under Dry and Wet Conditions
The characteristics of pavement texture are key determinants of skid resistance, directly affecting tire-pavement interactions. This study examines the relationship between separated pavement textures and friction coefficients under dry and wet conditions. Using 3D laser scanning, texture data were...
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MDPI AG
2025-03-01
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| Series: | Lubricants |
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| Online Access: | https://www.mdpi.com/2075-4442/13/4/138 |
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| author | Jie Gao Jingjing Fan Chong Gao Liang Song |
| author_facet | Jie Gao Jingjing Fan Chong Gao Liang Song |
| author_sort | Jie Gao |
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| description | The characteristics of pavement texture are key determinants of skid resistance, directly affecting tire-pavement interactions. This study examines the relationship between separated pavement textures and friction coefficients under dry and wet conditions. Using 3D laser scanning, texture data were collected from 40 asphalt pavement sections in Nanchang. The data were processed through Fourier Transform and Butterworth filtering, enabling separation of macro- and micro-textures. Based on ISO 25178-2, 16 parameters—including S<sub>a</sub> (Arithmetic Mean Height), S<sub>tr</sub> (Texture Aspect Ratio), V<sub>mc</sub> (Core Material Volume), and S<sub>sk</sub> (Skewness)—were selected to represent macro- and micro-texture features. These parameters were analyzed against dry and wet friction coefficients, and regression models were developed to predict F<sub>Dry</sub> and F<sub>Wet</sub>. The results show significant effects of both macro- and micro-texture parameters on friction coefficients. Among macro-texture parameters, S<sub>a</sub> and V<sub>mc</sub> strongly correlate with F<sub>Dry</sub>, suggesting that greater surface roughness and core material volume enhance friction in dry conditions. Conversely, S<sub>sk</sub> negatively correlates with F<sub>Dry</sub>, indicating that negatively skewed profiles improve skid resistance. Other macro-texture parameters also influence F<sub>Dry</sub> to varying extents. For micro-texture, S<sub>dc</sub> (Material Height Difference), S<sub>pd</sub> (Peak Density), and V<sub>vv</sub> (Valley Void Volume) primarily affect F<sub>Wet</sub>, with all showing significant positive correlations. This indicates that sharp peaks and void structures in micro-texture enhance skid resistance in wet conditions. The regression models effectively predict both friction coefficients, reducing field testing complexity and cost. These models provide an efficient tool for evaluating skid resistance and supporting pavement performance and maintenance management. This study highlights the distinct roles of macro and micro-texture in skid resistance, offering insights for optimizing pavement design and maintenance. |
| format | Article |
| id | doaj-art-155afc53fc2d481c850e12ca2cf5acd9 |
| institution | OA Journals |
| issn | 2075-4442 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Lubricants |
| spelling | doaj-art-155afc53fc2d481c850e12ca2cf5acd92025-08-20T02:18:00ZengMDPI AGLubricants2075-44422025-03-0113413810.3390/lubricants13040138Friction Prediction in Asphalt Pavements: The Role of Separated Macro- and Micro-Texture Parameters Under Dry and Wet ConditionsJie Gao0Jingjing Fan1Chong Gao2Liang Song3School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, ChinaSchool of Transportation and Logistics, Xinjiang Agricultural University, Urumqi 830091, ChinaSchool of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, ChinaSchool of Traffic and Transportation, Xinjiang University, Urumqi 830017, ChinaThe characteristics of pavement texture are key determinants of skid resistance, directly affecting tire-pavement interactions. This study examines the relationship between separated pavement textures and friction coefficients under dry and wet conditions. Using 3D laser scanning, texture data were collected from 40 asphalt pavement sections in Nanchang. The data were processed through Fourier Transform and Butterworth filtering, enabling separation of macro- and micro-textures. Based on ISO 25178-2, 16 parameters—including S<sub>a</sub> (Arithmetic Mean Height), S<sub>tr</sub> (Texture Aspect Ratio), V<sub>mc</sub> (Core Material Volume), and S<sub>sk</sub> (Skewness)—were selected to represent macro- and micro-texture features. These parameters were analyzed against dry and wet friction coefficients, and regression models were developed to predict F<sub>Dry</sub> and F<sub>Wet</sub>. The results show significant effects of both macro- and micro-texture parameters on friction coefficients. Among macro-texture parameters, S<sub>a</sub> and V<sub>mc</sub> strongly correlate with F<sub>Dry</sub>, suggesting that greater surface roughness and core material volume enhance friction in dry conditions. Conversely, S<sub>sk</sub> negatively correlates with F<sub>Dry</sub>, indicating that negatively skewed profiles improve skid resistance. Other macro-texture parameters also influence F<sub>Dry</sub> to varying extents. For micro-texture, S<sub>dc</sub> (Material Height Difference), S<sub>pd</sub> (Peak Density), and V<sub>vv</sub> (Valley Void Volume) primarily affect F<sub>Wet</sub>, with all showing significant positive correlations. This indicates that sharp peaks and void structures in micro-texture enhance skid resistance in wet conditions. The regression models effectively predict both friction coefficients, reducing field testing complexity and cost. These models provide an efficient tool for evaluating skid resistance and supporting pavement performance and maintenance management. This study highlights the distinct roles of macro and micro-texture in skid resistance, offering insights for optimizing pavement design and maintenance.https://www.mdpi.com/2075-4442/13/4/138asphalt pavementmacro-micro texture separationthree-dimensional texture characteristicsskid resistance performancedry-wet friction coefficient |
| spellingShingle | Jie Gao Jingjing Fan Chong Gao Liang Song Friction Prediction in Asphalt Pavements: The Role of Separated Macro- and Micro-Texture Parameters Under Dry and Wet Conditions Lubricants asphalt pavement macro-micro texture separation three-dimensional texture characteristics skid resistance performance dry-wet friction coefficient |
| title | Friction Prediction in Asphalt Pavements: The Role of Separated Macro- and Micro-Texture Parameters Under Dry and Wet Conditions |
| title_full | Friction Prediction in Asphalt Pavements: The Role of Separated Macro- and Micro-Texture Parameters Under Dry and Wet Conditions |
| title_fullStr | Friction Prediction in Asphalt Pavements: The Role of Separated Macro- and Micro-Texture Parameters Under Dry and Wet Conditions |
| title_full_unstemmed | Friction Prediction in Asphalt Pavements: The Role of Separated Macro- and Micro-Texture Parameters Under Dry and Wet Conditions |
| title_short | Friction Prediction in Asphalt Pavements: The Role of Separated Macro- and Micro-Texture Parameters Under Dry and Wet Conditions |
| title_sort | friction prediction in asphalt pavements the role of separated macro and micro texture parameters under dry and wet conditions |
| topic | asphalt pavement macro-micro texture separation three-dimensional texture characteristics skid resistance performance dry-wet friction coefficient |
| url | https://www.mdpi.com/2075-4442/13/4/138 |
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