Effect of Curing Profile on Kaolin-based Geopolymers

Depending on the processing conditions, geopolymers can exhibit a wide variety of properties and characteristics. Curing profile serves as a crucial parameter in synthesis of geopolymers. In this paper, the influence of curing temperature and curing time on the properties of kaolin-based geopolymer...

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Bibliographic Details
Published inPhysics procedia Vol. 22; pp. 305 - 311
Main Authors Heah, C.Y., Kamarudin, H., Bakri, A.M. Mustafa Al, Binhussain, M., Luqman, M., Nizar, I. Khairul, Ruzaidi, C.M., Liew, Y.M.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 2011
Subjects
Curing Profile
Curing Temperature
Curing Time
Geopolymer
Kaolin
Curing Time
Curing Profile
Geopolymer
Curing Temperature
Kaolin
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Summary:Depending on the processing conditions, geopolymers can exhibit a wide variety of properties and characteristics. Curing profile serves as a crucial parameter in synthesis of geopolymers. In this paper, the influence of curing temperature and curing time on the properties of kaolin-based geopolymer was studied. The samples were separated into several curing conditions; including curing at ambient temperature, 40°C, 60°C, 80°C and 100°C for 1 day, and up to 3 days. The compressive strength and SEM analysis of geopolymer products were evaluated. Results showed that curing condition has a significant effect on the mechanical properties of kaolin-based geopolymer. Generally, curing at ambient temperature was not feasible, while increase in temperature favored the strength development. In addition, prolonged curing time improved the geopolymerization process, and led to higher strength gain. However, curing at high temperature for a long period of time caused failure of the sample at a later age.
ISSN:1875-3892
1875-3892
DOI:10.1016/j.phpro.2011.11.048