Class C fly ash as a substitute for mineral fillers in asphalt mixtures

Sajjad Ali, Muhammad Owais Raza Siddiqui, Syed Muhammad Noman, Tahreem Beg, Danmei Sun

Research output: Contribution to journalArticlepeer-review

Abstract

The influence of class C fly ash as a substitute for mineral aggregate on the stability and density of asphalt mixtures containing 3.5−6 wt% of bitumen was investigated. For the fly ash concentration (in relation to the replaced aggregate) 25, 50, 75 and 100 wt%, the optimal asphalt content (OAC) was determined, respectively, 5.75, 4.82, 4.42, 4.4 and 4 wt%. The stability increased with the increase in the content of fly ash. The results confirm the possibility of replacing mineral aggregates with fly ash.
Original languageEnglish
Pages (from-to)438-449
Number of pages12
JournalPolimery
Volume67
Issue number9
DOIs
Publication statusPublished - 23 Sep 2022

Keywords

  • Marshall Mix method
  • asphalt
  • fly ash
  • road construction

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Polymers and Plastics
  • Materials Chemistry

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