The influence of highly modified asphalt binder on pavement fatigue life prediction – selected problems
The introduction of new road pavement materials causes the need to verify whether the existing pavement design methods enable correct incorporation of their properties. In the case of asphalt pavements, the origins of contemporary methods may be traced back to the mid-20th century, when solely unmod...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2021-12-01
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| Series: | Archives of Civil Engineering |
| Subjects: | |
| Online Access: | https://journals.pan.pl/Content/122018/PDF/art39_corr.pdf |
| _version_ | 1798040805754011648 |
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| author | Krzysztof Błażejowski Magdalena Złotowska Roman Nagórski Paweł Tutka |
| author_facet | Krzysztof Błażejowski Magdalena Złotowska Roman Nagórski Paweł Tutka |
| author_sort | Krzysztof Błażejowski |
| collection | DOAJ |
| description | The introduction of new road pavement materials causes the need to verify whether the existing pavement design methods enable correct incorporation of their properties. In the case of asphalt pavements, the origins of contemporary methods may be traced back to the mid-20th century, when solely unmodified binders were used. The introduction of highly SBS-modified binders in 2009 significantly changed the behaviour of the asphalt mixtures and the entire pavement structure. Asphalt courses are now characterised by very high flexibility, elasticity and fatigue resistance, with simultaneous high resistance to rutting. The aim of the article is to present the effect of the use of asphalt mixtures with HiMA (Highly Modified Asphalt) binders in different variants of flexible pavement structures – including one, two or three courses containing HiMA. Fatigue life calculations were performed using the “Similarity Method”, which enables estimation of the fatigue life of the structure based on its relationship with the results of laboratory fatigue tests. The layer system with HiMA in the asphalt base course proved the most advantageous, combining excellent fatigue properties of the mixture containing HiMA with greater stiffness of the wearing and binder courses containing classic binders. The other aspect taken into account in the calculations was the effect of changing the mixture in the asphalt base course from AC 22 to AC 16. This change proved advantageous in all the analysed structures. The deflections and critical strains decreased, while pavement life, determined by fatigue and permanent deformation criteria, increased. |
| first_indexed | 2024-04-11T22:12:44Z |
| format | Article |
| id | doaj.art-91ec08ecda944f689fde3ab45fcee4a4 |
| institution | Directory Open Access Journal |
| issn | 2300-3103 |
| language | English |
| last_indexed | 2024-04-11T22:12:44Z |
| publishDate | 2021-12-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Civil Engineering |
| spelling | doaj.art-91ec08ecda944f689fde3ab45fcee4a42022-12-22T04:00:30ZengPolish Academy of SciencesArchives of Civil Engineering2300-31032021-12-01vol. 67No 4605624https://doi.org/10.24425/ace.2021.138521The influence of highly modified asphalt binder on pavement fatigue life prediction – selected problemsKrzysztof Błażejowski0https://orcid.org/0000-0003-0684-7328Magdalena Złotowska1https://orcid.org/0000-0003-1654-1859Roman Nagórski2https://orcid.org/0000-0002-1039-1530Paweł Tutka3https://orcid.org/0000-0003-0879-0310ORLEN Asfalt sp. z o.o., R&D Dept., ul. Łukasiewicza 39, 00-637 Warsaw, PolandWarsaw University of Technology, Faculty of Civil Engineering, Al. Armii Ludowej 16, 00-637 Warsaw, PolandWarsaw University of Technology, Faculty of Civil Engineering, Al. Armii Ludowej 16, 00-637 Warsaw, PolandWarsaw University of Technology, Faculty of Civil Engineering, Al. Armii Ludowej 16, 00-637 Warsaw, PolandThe introduction of new road pavement materials causes the need to verify whether the existing pavement design methods enable correct incorporation of their properties. In the case of asphalt pavements, the origins of contemporary methods may be traced back to the mid-20th century, when solely unmodified binders were used. The introduction of highly SBS-modified binders in 2009 significantly changed the behaviour of the asphalt mixtures and the entire pavement structure. Asphalt courses are now characterised by very high flexibility, elasticity and fatigue resistance, with simultaneous high resistance to rutting. The aim of the article is to present the effect of the use of asphalt mixtures with HiMA (Highly Modified Asphalt) binders in different variants of flexible pavement structures – including one, two or three courses containing HiMA. Fatigue life calculations were performed using the “Similarity Method”, which enables estimation of the fatigue life of the structure based on its relationship with the results of laboratory fatigue tests. The layer system with HiMA in the asphalt base course proved the most advantageous, combining excellent fatigue properties of the mixture containing HiMA with greater stiffness of the wearing and binder courses containing classic binders. The other aspect taken into account in the calculations was the effect of changing the mixture in the asphalt base course from AC 22 to AC 16. This change proved advantageous in all the analysed structures. The deflections and critical strains decreased, while pavement life, determined by fatigue and permanent deformation criteria, increased.https://journals.pan.pl/Content/122018/PDF/art39_corr.pdfroad pavementhighly modified asphalt binderhimafatigue life predictiondurability analysis |
| spellingShingle | Krzysztof Błażejowski Magdalena Złotowska Roman Nagórski Paweł Tutka The influence of highly modified asphalt binder on pavement fatigue life prediction – selected problems Archives of Civil Engineering road pavement highly modified asphalt binder hima fatigue life prediction durability analysis |
| title | The influence of highly modified asphalt binder on pavement fatigue life prediction – selected problems |
| title_full | The influence of highly modified asphalt binder on pavement fatigue life prediction – selected problems |
| title_fullStr | The influence of highly modified asphalt binder on pavement fatigue life prediction – selected problems |
| title_full_unstemmed | The influence of highly modified asphalt binder on pavement fatigue life prediction – selected problems |
| title_short | The influence of highly modified asphalt binder on pavement fatigue life prediction – selected problems |
| title_sort | influence of highly modified asphalt binder on pavement fatigue life prediction selected problems |
| topic | road pavement highly modified asphalt binder hima fatigue life prediction durability analysis |
| url | https://journals.pan.pl/Content/122018/PDF/art39_corr.pdf |
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