Coal fly ash as a pozzolan

Michael Thomas, Robert Jewell, Martyn Jones

Research output: Chapter in Book/Report/Conference proceedingChapter

21 Citations (Scopus)


This chapter provides information on the use of coal fly ash as a pozzolan in concrete. Fly ash can be used to partially replace Portland cement in concrete, and its use provides many technical, economic, and environmental benefits. The characteristics of fly ash and the pozzolanic reaction are described. The impact of fly ash on the properties of concrete in the fresh (plastic) and hardened states are discussed, and particular emphasis is placed on explaining how fly ash can influence the long-term durability of the material. Information is also given on various applications of fly ash. The chapter also provides background information on coal bottom ash, and its use in cementitious material, concrete, and other construction applications.

Original languageEnglish
Title of host publicationCoal Combustion Products (CCP's)
Subtitle of host publicationCharacteristics, Utilization and Beneficiation
EditorsTom Robl, Anne Oberlink, Rod Jones
PublisherWoodhead Publishing Limited
Number of pages34
ISBN (Electronic)9780081010471
ISBN (Print)9780081009451
Publication statusPublished - 3 May 2017


  • Cement
  • Coal bottom ash
  • Coal fly ash
  • Concrete
  • Durability
  • Fresh properties
  • Mechanical properties

ASJC Scopus subject areas

  • Civil and Structural Engineering


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