Utilization of fly ash cenosphere as lightweight filler in cement-based composites – A review

Asad Hanif, Zeyu Lu, Zongjin Li*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

203 Scopus citations

Abstract

Fly ash cenospheres (FACs) are the hollow spherical particles obtained during coal burning process in coal fired power plants. FAC has been used as a lightweight filler (LWF) material in producing lightweight cementitious composites (LWC) since 1984 and currently many researchers are widening the knowledge in this area. In this paper, the research activities and outputs regarding the application of FAC in civil engineering are reviewed systematically. The influences of FAC on the mechanical, functional and structural properties as well as on the durability of FAC incorporated cement-based composites (FACC) are summarized. The higher specific strength of the composites modified by FAC can be attributed to the thicker and tougher FAC shell as well as the partial pozzolanic activity of FAC particles in cementitious systems. Future prospects for its use are also suggested in this paper.

Original languageEnglish
Pages (from-to)373-384
Number of pages12
JournalConstruction and Building Materials
Volume144
DOIs
StatePublished - 30 Jul 2017
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2017 Elsevier Ltd

Keywords

  • Cement-based composites
  • Durability
  • Fly ash cenosphere
  • Lightweight
  • Microsphere
  • Sustainable development

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • General Materials Science

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