Relationship between PSV and DF.
<div><p>High-performance anti-skid asphalt mixtures are essential for improving skid resistance and pavement durability. This study investigates the skid resistance performance of small-aggregate-size SMA-7 asphalt mixtures using calcined bauxite (CB) aggregates. Four types of aggregates...
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2025
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| _version_ | 1852017865890201600 |
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| author | Pengfei Li (290581) |
| author2 | Lingkun Kong (18878704) Nan Mao (1678654) Chenwei Gu (8981063) |
| author2_role | author author author |
| author_facet | Pengfei Li (290581) Lingkun Kong (18878704) Nan Mao (1678654) Chenwei Gu (8981063) |
| author_role | author |
| dc.creator.none.fl_str_mv | Pengfei Li (290581) Lingkun Kong (18878704) Nan Mao (1678654) Chenwei Gu (8981063) |
| dc.date.none.fl_str_mv | 2025-08-05T17:28:11Z |
| dc.identifier.none.fl_str_mv | 10.1371/journal.pone.0329579.g011 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/figure/Relationship_between_PSV_and_DF_/29830226 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Biophysics Ecology Sociology Cancer Science Policy Infectious Diseases Biological Sciences not elsewhere classified Chemical Sciences not elsewhere classified various laboratory tests providing valuable insights polished stone value decay rate 30 5 times higher 4 – 36 enhanced wear resistance dynamic friction tests dynamic friction coefficients term skid resistance improving skid resistance maximum particle size various polishing stages 000 polishing cycles fine aggregate ratio temperature crack resistance div >< p designing durable small calcined bauxite aggregates 2 </ sup skid resistance performance including pavement performance cb aggregate stabilizes skid asphalt mixtures skid resistance polishing resistance friction characteristics temperature stability pavement durability asphalt mixtures wheel polishing prolonged polishing performance anti overall performance study investigates strong correlations size sma retaining 29 results indicate optimal coarse mixture preparation lower speeds limestone — limestone even limestone aggregates four types findings suggest cb aggregates attenuation rates 35 mm |
| dc.title.none.fl_str_mv | Relationship between PSV and DF. |
| dc.type.none.fl_str_mv | Image Figure info:eu-repo/semantics/publishedVersion image |
| description | <div><p>High-performance anti-skid asphalt mixtures are essential for improving skid resistance and pavement durability. This study investigates the skid resistance performance of small-aggregate-size SMA-7 asphalt mixtures using calcined bauxite (CB) aggregates. Four types of aggregates—75#, 85#, and 88# CB and limestone—were used in the mixture preparation. Various laboratory tests, including pavement performance, Polished Stone Value (PSV) of aggregates, three-wheel polishing, and dynamic friction tests, were conducted to evaluate the performance and friction characteristics of the mixtures at various polishing stages. The results indicate that the optimal coarse-to-fine aggregate ratio for SMA-7 is 75:25, with a maximum particle size of 6.35 mm. The PSV of 88# CB aggregate stabilizes after 120,000 polishing cycles, exhibiting a decay rate 30% slower than that of limestone aggregates. Among the mixtures, 88#CB-SMA demonstrates superior high-temperature stability (1.5 times higher than limestone), slightly better low-temperature crack resistance, and significantly enhanced polishing resistance. Additionally, the dynamic friction coefficients of CB mixtures show slower attenuation, retaining 29.4–36.3% higher residual friction compared to limestone even after prolonged polishing. Strong correlations (R<sup>2</sup> > 0.85) between the attenuation rates of PSV and dynamic friction coefficients confirm that the enhanced wear resistance of CB aggregates is key to long-term skid resistance, particularly at lower speeds. These findings suggest that high-grade CB aggregates greatly improve both the skid resistance and overall performance of asphalt mixtures, providing valuable insights for designing durable small-size asphalt wear layers.</p></div> |
| eu_rights_str_mv | openAccess |
| id | Manara_3ac5d65ae42eafe60affba7e3d5c8a72 |
| identifier_str_mv | 10.1371/journal.pone.0329579.g011 |
| network_acronym_str | Manara |
| network_name_str | ManaraRepo |
| oai_identifier_str | oai:figshare.com:article/29830226 |
| publishDate | 2025 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Relationship between PSV and DF.Pengfei Li (290581)Lingkun Kong (18878704)Nan Mao (1678654)Chenwei Gu (8981063)BiophysicsEcologySociologyCancerScience PolicyInfectious DiseasesBiological Sciences not elsewhere classifiedChemical Sciences not elsewhere classifiedvarious laboratory testsproviding valuable insightspolished stone valuedecay rate 305 times higher4 – 36enhanced wear resistancedynamic friction testsdynamic friction coefficientsterm skid resistanceimproving skid resistancemaximum particle sizevarious polishing stages000 polishing cyclesfine aggregate ratiotemperature crack resistancediv >< pdesigning durable smallcalcined bauxite aggregates2 </ supskid resistance performanceincluding pavement performancecb aggregate stabilizesskid asphalt mixturesskid resistancepolishing resistancefriction characteristicstemperature stabilitypavement durabilityasphalt mixtureswheel polishingprolonged polishingperformance antioverall performancestudy investigatesstrong correlationssize smaretaining 29results indicateoptimal coarsemixture preparationlower speedslimestone —limestone evenlimestone aggregatesfour typesfindings suggestcb aggregatesattenuation rates35 mm<div><p>High-performance anti-skid asphalt mixtures are essential for improving skid resistance and pavement durability. This study investigates the skid resistance performance of small-aggregate-size SMA-7 asphalt mixtures using calcined bauxite (CB) aggregates. Four types of aggregates—75#, 85#, and 88# CB and limestone—were used in the mixture preparation. Various laboratory tests, including pavement performance, Polished Stone Value (PSV) of aggregates, three-wheel polishing, and dynamic friction tests, were conducted to evaluate the performance and friction characteristics of the mixtures at various polishing stages. The results indicate that the optimal coarse-to-fine aggregate ratio for SMA-7 is 75:25, with a maximum particle size of 6.35 mm. The PSV of 88# CB aggregate stabilizes after 120,000 polishing cycles, exhibiting a decay rate 30% slower than that of limestone aggregates. Among the mixtures, 88#CB-SMA demonstrates superior high-temperature stability (1.5 times higher than limestone), slightly better low-temperature crack resistance, and significantly enhanced polishing resistance. Additionally, the dynamic friction coefficients of CB mixtures show slower attenuation, retaining 29.4–36.3% higher residual friction compared to limestone even after prolonged polishing. Strong correlations (R<sup>2</sup> > 0.85) between the attenuation rates of PSV and dynamic friction coefficients confirm that the enhanced wear resistance of CB aggregates is key to long-term skid resistance, particularly at lower speeds. These findings suggest that high-grade CB aggregates greatly improve both the skid resistance and overall performance of asphalt mixtures, providing valuable insights for designing durable small-size asphalt wear layers.</p></div>2025-08-05T17:28:11ZImageFigureinfo:eu-repo/semantics/publishedVersionimage10.1371/journal.pone.0329579.g011https://figshare.com/articles/figure/Relationship_between_PSV_and_DF_/29830226CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/298302262025-08-05T17:28:11Z |
| spellingShingle | Relationship between PSV and DF. Pengfei Li (290581) Biophysics Ecology Sociology Cancer Science Policy Infectious Diseases Biological Sciences not elsewhere classified Chemical Sciences not elsewhere classified various laboratory tests providing valuable insights polished stone value decay rate 30 5 times higher 4 – 36 enhanced wear resistance dynamic friction tests dynamic friction coefficients term skid resistance improving skid resistance maximum particle size various polishing stages 000 polishing cycles fine aggregate ratio temperature crack resistance div >< p designing durable small calcined bauxite aggregates 2 </ sup skid resistance performance including pavement performance cb aggregate stabilizes skid asphalt mixtures skid resistance polishing resistance friction characteristics temperature stability pavement durability asphalt mixtures wheel polishing prolonged polishing performance anti overall performance study investigates strong correlations size sma retaining 29 results indicate optimal coarse mixture preparation lower speeds limestone — limestone even limestone aggregates four types findings suggest cb aggregates attenuation rates 35 mm |
| status_str | publishedVersion |
| title | Relationship between PSV and DF. |
| title_full | Relationship between PSV and DF. |
| title_fullStr | Relationship between PSV and DF. |
| title_full_unstemmed | Relationship between PSV and DF. |
| title_short | Relationship between PSV and DF. |
| title_sort | Relationship between PSV and DF. |
| topic | Biophysics Ecology Sociology Cancer Science Policy Infectious Diseases Biological Sciences not elsewhere classified Chemical Sciences not elsewhere classified various laboratory tests providing valuable insights polished stone value decay rate 30 5 times higher 4 – 36 enhanced wear resistance dynamic friction tests dynamic friction coefficients term skid resistance improving skid resistance maximum particle size various polishing stages 000 polishing cycles fine aggregate ratio temperature crack resistance div >< p designing durable small calcined bauxite aggregates 2 </ sup skid resistance performance including pavement performance cb aggregate stabilizes skid asphalt mixtures skid resistance polishing resistance friction characteristics temperature stability pavement durability asphalt mixtures wheel polishing prolonged polishing performance anti overall performance study investigates strong correlations size sma retaining 29 results indicate optimal coarse mixture preparation lower speeds limestone — limestone even limestone aggregates four types findings suggest cb aggregates attenuation rates 35 mm |