Evaluation of oxidation products generated in long term field-aged bitumen

Kecheng Zhao, Yuhong Wang, Yong Wen, Dan Chong

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Long life bituminous pavement is widely pursed. The change of bitumen properties after long term field aging, however, often receives little attention. Particularly missing are oxidative aging mechanisms and oxidation products generated in sufficient long term field aging conditions. Bitumen binders studied in this paper were extracted from Hong Kong field pavement which has served for 36 years. In addition, four strategic highway research program (SHRP) bitumen binders were artificially aged to simulate long term oxidative aging. The bitumen binders extracted from field as well as their asphaltene components were examined by using Fourier Transform Infrared spectroscopy (FTIR) and X-ray Photoelectron Spectroscopy (XPS). The artificially aged bitumen binders were subject to analysis by using FTIR. Main oxidation products in different bitumen components were analyzed. The relationships between ketone, alcohol and the corresponding dynamic viscosity were investigated. Alcohol was proven to be a significant long term aging product but not seriously affect the dynamic viscosity of field-aged bitumen.
Original languageEnglish
Title of host publicationFunctional Pavement Design - Proceedings of the 4th Chinese-European Workshop on Functional Pavement Design, CEW 2016
PublisherCRC Press/Balkema
Pages339-348
Number of pages10
ISBN (Print)9781315643274
Publication statusPublished - 1 Jan 2016
Event4th Chinese-European Workshop on Functional Pavement Design, CEW 2016 - Delft, Netherlands
Duration: 29 Jun 20161 Jul 2016

Conference

Conference4th Chinese-European Workshop on Functional Pavement Design, CEW 2016
Country/TerritoryNetherlands
CityDelft
Period29/06/161/07/16

ASJC Scopus subject areas

  • Building and Construction
  • Civil and Structural Engineering

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