Ageing effect on chemo-mechanics of bitumen

Research output: Chapter in Book/Conference proceedings/Edited volumeChapterScientific

1 Citation (Scopus)

Abstract

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 Bookseries
EditorsLily D. Poulikakos, Augusto Cannone Falchetto, Michael P. Wistuba, Bernhard Hofko, Laurent Porot, Hervé Di Benedetto
PublisherSpringer
Pages71-76
Number of pages6
Volume20
ISBN (Electronic)978-3-030-00476-7
ISBN (Print)978-3-030-00475-0
DOIs
Publication statusPublished - 1 Jan 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
Volume20
ISSN (Print)2211-0844
ISSN (Electronic)2211-0852

Conference

ConferenceRILEM 252-CMB: RILEM 252-CMB-Symposium on Chemo Mechanical Characterization of Bituminous Materials
Abbreviated titleRILEM 252-CMB
CountryGermany
CityBraunschweig
Period17/09/1818/09/18

Keywords

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

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