<div class="csl-bib-body">
<div class="csl-entry">Hofer, K., Maschauer, D., Mirwald, J., Grothe, H., & Hofko, B. (2022, July 19). <i>Influence of NO and NO2 on the long-term aging of asphalt binder</i> [Conference Presentation]. Petersen Asphalt Research Conference, Laramie, Wyoming, United States of America (the).</div>
</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/152544
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dc.description.abstract
The aging of asphalt binder is one of the main causes for asphalt pavement failure, which is why realistic laboratory aging methods are crucial to ensure long-time durability. However, certain aging-inducing environmental factors, e.g. humidity, solar radiation and reactive oxygen species (ROS), are disregarded by current standardized aging methods. Especially, the interaction of the binder with nitrogen oxides (NOx) or ozone (O3) is mainly unexplored. This study focusses on the reactivity of individual ROS (NO, NO2, O3) in regards to the long-term aging (LTA) of three unmodified binder. The LTA is performed with an adapted version of the Viennese Binder Aging (VBA) method and Fourier-Transform-Infrared (FTIR) spectroscopy and the Dynamic Shear Rheometer (DSR) are used for analysis. The results show, that NO as the only oxygen source present did not induce aging, but NO2 caused significant aging to occur. The impact of NO2 was especially strong in combination with another oxygen source, whereby NO2 is believed to work as an oxidation accelerator. The effect of O3 was less severe, causing no additional aging for two investigated binder. This study proves the crucial impact of ROS on asphalt binder aging and the importance of incorporating them in laboratory aging simulations.
en
dc.language.iso
en
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dc.subject
Bitumen
en
dc.subject
Long-term aging
en
dc.subject
Reactive oxygen species
en
dc.subject
DSR
en
dc.subject
FTIR
en
dc.title
Influence of NO and NO2 on the long-term aging of asphalt binder
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.type.category
Conference Presentation
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tuw.researchTopic.id
M7
-
tuw.researchTopic.id
E6
-
tuw.researchTopic.id
E5
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tuw.researchTopic.name
Special and Engineering Materials
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tuw.researchTopic.name
Sustainable Production and Technologies
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tuw.researchTopic.name
Efficient Utilisation of Material Resources
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tuw.researchTopic.value
40
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tuw.researchTopic.value
20
-
tuw.researchTopic.value
40
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tuw.publication.orgunit
E230-03 - Forschungsbereich Straßenwesen
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tuw.author.orcid
0000-0003-4076-4411
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tuw.author.orcid
0000-0001-5025-7427
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tuw.author.orcid
0000-0002-2715-1429
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tuw.author.orcid
0000-0002-8329-8687
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tuw.event.name
Petersen Asphalt Research Conference
en
tuw.event.startdate
19-07-2022
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tuw.event.enddate
21-07-2022
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tuw.event.online
Hybrid
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tuw.event.type
Event for scientific audience
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tuw.event.place
Laramie, Wyoming
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tuw.event.country
US
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tuw.event.presenter
Hofer, Kristina
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wb.sciencebranch
Chemie
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wb.sciencebranch
Bauingenieurwesen
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wb.sciencebranch
Verkehrswesen
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wb.sciencebranch.oefos
1040
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wb.sciencebranch.oefos
2011
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wb.sciencebranch.oefos
2013
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wb.sciencebranch.value
20
-
wb.sciencebranch.value
50
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wb.sciencebranch.value
30
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item.languageiso639-1
en
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item.openairetype
conference paper not in proceedings
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item.grantfulltext
none
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item.fulltext
no Fulltext
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item.cerifentitytype
Publications
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item.openairecristype
http://purl.org/coar/resource_type/c_18cp
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crisitem.author.dept
E230-03 - Forschungsbereich Straßenwesen
-
crisitem.author.dept
E230-03 - Forschungsbereich Straßenwesen
-
crisitem.author.dept
E230-03 - Forschungsbereich Straßenwesen
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crisitem.author.dept
E165-01-5 - Forschungsgruppe Physikalische Chemie von Aerosolpartikeln
