Evaluation of the effect of various surficial pollutants and environmental condition on surface friction performance of road pavement
Skip resistance of asphalt is an important parameter that can influence the safety of drivers on roads. Although there is a linear relationship between slipping on road surfaces and accidents, the impacts of pollutants for decreasing friction of roads is clear to researchers. Moisture and temperature influence friction and safety. In this research in SMA samples, three different gradations with the maximum nominal sizes of 19, 12.5 and 9.5, based on international standards were used. For polluting the surface, five materials that are found on roads were used, including fine-grained soil, sand, oil, soot and rubber powder. To measure the skip resistance, the British pendulum tester was used and for analysing macro-texture, the sand patch method was used. The results of this research showed that by increasing the maximum nominal size of aggregates, the depth of macro-texture in surfaces are grown and this is due to the decrease of fine aggregates in larger gradations. Because of the higher flexibility of pure bitumen, the applied compression pressure on rigid aggregates can cause indentations in the substrate and result in declining the roughness height of aggregates in the mixed surface. This leads to declining the hysteresis part of friction by increasing temperature.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/02093324
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Supplemental Notes:
- © Scientific Journal of Silesian University of Technology. Series Transport 2021.
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Authors:
- Khabiri, Mohammad Mehdi
- Meybodi, Pooya Afkhamy
- Montazeri, Ali Mohammad
- Publication Date: 2021
Language
- English
Media Info
- Media Type: Digital/other
- Features: Figures; References; Tables;
- Pagination: pp 99-111
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Serial:
- Scientific Journal of Silesian University of Technology. Series Transport
- Volume: 112
- Publisher: Silesian University of Technology
- ISSN: 0209-3324
- EISSN: 2450-1549
- Serial URL: https://doi.org/10.20858/sjsutst
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Publication flags:
Open Access (libre)
Subject/Index Terms
- TRT Terms: Asphalt pavements; Decision trees; Highway safety; Pendulum tests; Pollutants; Skid resistance
- Subject Areas: Highways; Materials; Pavements;
Filing Info
- Accession Number: 01844239
- Record Type: Publication
- Files: TRIS
- Created Date: Apr 26 2022 5:08PM