Chemical and Physical Characterization of Fly Ash as Geopolymer Material

Puput Risdanareni*, Poppy Puspitasari, Ekaputri Januarti Jaya

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

33 Citations (Scopus)


Research on finding suitable cement substitute material becomes massive due to environmental effect. Geopolymer as inorganic material is potential to be the smart solution to overcome global warming issue. Fly ash is a waste material rich in silica and alumina becomes popular raw material to produce geopolymer. The best properties ofgeopolymer paste come from the high quality of fly ash. Therefore, it is important to investigate various types of fly ash and geopolymer properties. Their chemical and physical properties characterized by XRF, pH value, XRD and SEM. The results showed that type of fly ash depended on amount of Si-based of Ca-based compound which consisted of spherical morphology. Geopolymer paste produced from the ash with different compound has bulky and irregular shape morphology. The pH value of each ash has also a correlation with the setting time of fresh paste.

Original languageEnglish
Article number01031
JournalMATEC Web of Conferences
Publication statusPublished - 1 Feb 2017
Event2016 Engineering Technology International Conference, ETIC 2016 - Ho Chi Minh City, Viet Nam
Duration: 5 Aug 20166 Aug 2016


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