Investigation of heat released during geopolymerization with fly ash based geopolymer
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Date
2019-08Author
Rosnita, Mohamed
Rafiza, Abd Razak
Mohd Mustafa Al Bakri, Abdullah
Raa Khimi, Shuib
Nurul Aida, Mohd Mortar
Warid Wazien, Ahmad Zailani
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Geopolymerization consists of several chemical reactions that has been reported widely as an exothermic reaction. Previous studies on heat released during geopolymerization used metakaolin and fly ash of F class as a precursor for geopolymer. Meanwhile, in this study, fly ash of C class is used and a preliminary study has been conducted on determining the exothermic reaction of the geopolymerization with various ratios of solid-to-liquid ranging from 1.5 to 2.5. The amount of heat released was determined by using Differential Scanning Calorimeter. It was proven that different solid-to-liquid ratio affected the amount of heat released during geopolymerization as the highest amount of the heat released were recorded at the optimum solid-to-liquid ratio of 2.0.