Chemical composition, morphology, and distribution of particulate matter produced by road pavement abrasion using different types of aggregates and asphalt binder

This study provides an assessment of the impact of asphalt mixture composition on the particulate matter (PM) emission from the pavement surface into the atmosphere. Pavement surface abrasion was also analyzed and potential differences among asphalt mixtures were determined by the chemical compositi...

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Bibliographic Details
Published in:Cogent engineering 2021-01, Vol.8 (1)
Main Authors: Jandacka, Dusan, Kovalova, Dasa, Durcanska, Daniela, Decky, Martin
Format: Article
Language:English
Subjects:
Abrasion
Aggregates
Asphalt mixes
asphalt mixture materials
Asphalt pavements
Binders (materials)
Chemical composition
chemical elements
Dolomite
Laboratory tests
Morphology
Multidimensional methods
Particulate emissions
particulate matter
Particulates
pavement surface
Pavements
Statistical methods
X ray analysis
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Summary:This study provides an assessment of the impact of asphalt mixture composition on the particulate matter (PM) emission from the pavement surface into the atmosphere. Pavement surface abrasion was also analyzed and potential differences among asphalt mixtures were determined by the chemical composition of captured PM. Various types of asphalt mixtures and the influence of their compositions on PM concentrations and chemical composition were studied and compared. The laboratory test setup included 12 different pavement samples. On average, the asphalt mixtures with a combination of melaphyre and dolomite as aggregates exhibited the highest values of PM. Measurements of PM 2.5 and PM 1 in the wheel tracking machine were used to study the impact of asphalt mixture properties on pavement surface abrasion. The dependence between the aggregate used in the tested mixtures and the abraded particulates has been confirmed. The Ca content in aggregates was strongly correlated with the abraded particulates, which was not observed for the Si content. The multidimensional statistical methods used showed the division of markers of the asphalt mixture materials into various factors (sources). The morphology of the solids was examined by electron microscopy with X-ray analysis, indicating the origin of the particles (aggregate, asphalt binder).
ISSN:2331-1916
2331-1916
DOI:10.1080/23311916.2021.1884325