Colour control in fly ash as a combined function of particle size and chemical composition

Akhmad Zaeni, Sri Bandyopadhyay, Aibing Yu, John R Rider, Charles C Sorrell, Stephen John Dain, Daryl Blackburn, Chris White

Research output: Contribution to journalArticleResearchpeer-review

12 Citations (Scopus)


This paper presents the results of an investigation on the combined effect of particle size and chemical composition on the colour of fly ash - a property that determines whether fly ash polymer composites can be engineered to have very light appearance satisfying the need for a wide range of commodity applications, particularly in the building material and computer housing industry. Four fly ash samples were collected from Tarong power plant Queensland, Australia, namely fly ash from first hopper (T59), classified fly ash from first hopper (T60), grinded and then classified fly ash from first hopper (T63) and fly ash from fourth hopper (T64). It was found that the particle size of T64 is smaller but still in the same order as T63. Colour measurement and chemical composition analysis of the different FA samples showed that there is a correlation between the particle size, chemical composition and colour of the fly ash. This information could be effectively used in fly ash recycling industry.
Original languageEnglish
Pages (from-to)399 - 404
Number of pages6
Issue number2
Publication statusPublished - 2010
Externally publishedYes

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