Characterisation of laboratory and field foamed bitumen stabilised beams from accelerated pavement testing trial

Sameera Pitawala, Arooran Sounthararajah, James Grenfell, Didier Bodin, Jayantha Kodikara

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther


The purpose of this study was to compare the properties of field constructed and laboratory manufactured foamed bitumen stabilised (FBS) beams under different conditions. A full-scale outdoor test pavement section was constructed with in-situ foamed bitumen stabilisation equipment at the accelerated loading facility (ALF) in Dandenong. The field beam specimens were cut from FBS slabs extracted from the trial pavement test section and the laboratory beams were manufactured in a mould using a British pendulum compactor. The flexural modulus of the field extracted beam specimens and laboratory manufactured beams were investigated using a four-point bending apparatus under different test conditions. Also, X-ray CT scanning was conducted on some field and laboratory samples to study the bitumen distribution throughout the aggregate skeleton. Flexural modulus master curves were developed for laboratory manufactured and field extracted beam specimens. Field extracted beam samples showed lower sensitivity to temperature and frequency compared to the laboratory manufactured FBS specimens.

Original languageEnglish
Title of host publicationLecture Notes in Civil Engineering
Subtitle of host publication6th International Conference on Accelerated Pavement Testing, APT 2021
EditorsArmelle Chabot, Pierre Hornych, John Harvey, Luis Guillermo Loria-Salazar
Number of pages9
ISBN (Print)9783030552350
Publication statusPublished - 2020
EventInternational Conference on Accelerated Pavement Testing 2021 - Nantes, France
Duration: 27 Sep 202129 Sep 2021
Conference number: 6th

Publication series

NameLecture Notes in Civil Engineering
Volume96 LNCE
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565


ConferenceInternational Conference on Accelerated Pavement Testing 2021
Abbreviated titleAPT 2021
Internet address


  • Accelerated pavement testing
  • Foamed bitumen
  • X-ray CT scan

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