Ageing effect on chemo-mechanics of bitumen

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Ageing has a significant impact on the chemical and mechanical behavior of bituminous materials. In this study, Fourier Transform Infrared (FTIR) spectrometer and Dynamic Shear Rheometer (DSR) tests were utilized to investigate the effect of ageing on the chemical and mechanical properties of bitumen. Bitumen films with thickness of 2 mm were exposed to laboratory ageing at various conditions. Specifically, different combinations of ageing time, temperature and pressure were applied on the materials. The FTIR results were used to quantify the changes in the chemical functional groups and to calculate the combined ageing index (summation of carbonyl and sulfoxide indices) of bitumen. In addition, the DSR test results were analyzed to determine the evolution of the crossover frequency and crossover modulus with ageing. A linear relationship was found between the combined ageing index and the distance in the crossover map, providing thus a chemo-mechanics framework to describe bitumen ageing.

Original languageEnglish
Title of host publicationRILEM 252-CMB-Symposium on Chemo Mechanical Characterization of Bituminous Materials
EditorsLily D. Poulikakos, Augusto Cannone Falchetto, Michael P. Wistuba, Bernhard Hofko, Laurent Porot, Hervé Di Benedetto
Number of pages6
ISBN (Electronic)978-3-030-00476-7
ISBN (Print)978-3-030-00475-0
Publication statusPublished - 2019
EventRILEM 252-CMB: RILEM 252-CMB-Symposium on Chemo Mechanical Characterization of Bituminous Materials - Braunschweig, Germany
Duration: 17 Sep 201818 Sep 2018

Publication series

NameRILEM Bookseries
ISSN (Print)2211-0844
ISSN (Electronic)2211-0852


ConferenceRILEM 252-CMB: RILEM 252-CMB-Symposium on Chemo Mechanical Characterization of Bituminous Materials
Abbreviated titleRILEM 252-CMB

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project 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.


  • Ageing
  • Bitumen
  • Chemo-mechanics
  • FTIR spectroscopy
  • Rheology


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