Performance Testing of Hot Mix Asphalt Containing Biochar

Shadi Saadeh, Yazan Alzubi, Basel Zaatarah, Ellie H. Fini, Pritam Katawal

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

In recent years, researchers have been able to identify asphalt binder additives such as polymers and bio-binder that can enhance the rheological and mechanical properties of asphalt binders. Utilizing Bio-binder as a partial replacement for asphalt binder was shown to be promising in both mechanical and sustainability aspects. Biochar which is a byproduct of producing bio-binder has shown similar results on asphalt binder. Cracking is one of the major distresses occurring in asphalt pavements. Researchers and practitioners have employed different test methods to characterize the fracture properties of Asphalt. The Semi-Circular bending test (SCB) proved to be a suitable test method to analyze the fracture properties of asphalt mixtures. This study focused on adding Rubber and Biochar to the asphalt mixtures to analyze their effect on fracture resistance; individually, combined, and the effect of aging them. The results suggested that the effect of adding Biochar evidently helped attain higher strain energy values after aging.

Original languageEnglish (US)
Title of host publicationRILEM Bookseries
PublisherSpringer Science and Business Media B.V.
Pages1465-1471
Number of pages7
DOIs
StatePublished - 2022

Publication series

NameRILEM Bookseries
Volume27
ISSN (Print)2211-0844
ISSN (Electronic)2211-0852

Keywords

  • Aged
  • Bio-binder
  • Biochar
  • Fracture energy
  • Hot Mix Asphalt (HMA)
  • Modified binder
  • Rubber
  • Semi-Circular Bending Test (SCB)

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanics of Materials

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