Title
Ageing Behavior of Porous and Dense Asphalt Mixtures in the Field
Author
Jing, R. (TU Delft Pavement Engineering) 
Varveri, Aikaterini (TU Delft Pavement Engineering)
Liu, X. (TU Delft Pavement Engineering)
Scarpas, Athanasios (TU Delft Pavement Engineering; Khalifa University)
Erkens, S. (TU Delft Pavement Engineering)
Contributor
Di Benedetto, H. (editor)
Baaj, H. (editor)
Chailleux, E. (editor)
Tebaldi, G. (editor)
Sauzéat, C. (editor)
Mangiafico, S. (editor)
Date
2021
Abstract
Bitumen ageing is one of the principal factors causing the deterioration of asphalt pavements. As bitumen ages, the pavement loses its ability to relax stresses during loading/unloading and thermal cooling process, thus the risk of cracking increases. Oxidation and ultraviolet (UV) radiation are believed to be the main factors that can cause bitumen ageing during pavement service life. The aim of this study is to evaluate the mechanical behavior of porous and dense asphalt pavements during field ageing. Pavement test sections were constructed in 2014 and are being exposed to actual environmental conditions since then. To investigate the effect of UV radiation on ageing, UV reflective glass-plates were utilized to cover part of the pavement surface. To study the evolution of the pavements’ mechanical properties, asphalt cores were collected from the test sections periodically (at one-year intervals). The changes in the stiffness modulus of the mixtures were determined via cyclic indirect tensile tests. The results show that the effect of mineral aggregate packing, and hence of air-void distribution and connectivity, on the ageing sensitivity (both thermal and UV ageing sensitivity) of the pavements with time was found to be significant, as the changes of the stiffness of the porous mixtures were greater than that of dense mixtures.
Subject
Dense mixture
Field ageing
Porous mixture
Stiffness
UV radiation
To reference this document use:
http://resolver.tudelft.nl/uuid:6218902e-795c-4514-b490-a8d5502369f5
DOI
https://doi.org/10.1007/978-3-030-46455-4_24
Publisher
Springer, Cham
Embargo date
2022-03-26
ISBN
978-3-030-46454-7
Source
Proceedings of the RILEM International Symposium on Bituminous Materials
Event
RILEM International Symposium on Bituminous Materials, 2020-12-14 → 2020-12-16, Online conference, , France
Series
RILEM Bookseries, 2211-0844, 27
Bibliographical note
Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
Part of collection
Institutional Repository
Document type
book chapter
Rights
© 2021 R. Jing, Aikaterini Varveri, X. Liu, Athanasios Scarpas, S. Erkens