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Please use this identifier to cite or link to this item: http://dspace.unimap.edu.my:80/xmlui/handle/123456789/41481

Title: The effect of curing temperature on physical and chemical properties of geopolymers
Authors: Mohd Mustafa, Al Bakri Abdullah
Kamarudin, Hussin
Mohammed Amjad, Hussain
Khairul Nizar, Ismail
Zarina, Yahya
Rafiza, Abdul Razak
???metadata.dc.contributor.url???: nizar@unimap.edu.my
Keywords: Compressive strength;Curing temperature;Fly ash;FTIR;Geopolymer;SEM
Issue Date: 2011
Publisher: Elsevier BV
Citation: Physics Procedia, vol. 22, 2011, pages 286-291
Series/Report no.: 2011 International Conference on Physics Science and Technology;(ICPST 2011)
Abstract: Fly ash-based geopolymers required heat to increase the geopolymerization process in order to obtain higher compressive strength. As such, geopolymer samples were prepared using different curing temperatures (room temperature, 50°C, 60°C, 70°C, 80°C), in which sodium silicate and NaOH were used as alkaline activators. The samples were cured for 24 hours in the oven and tested on the seventh day. The result revealed that the maximum compressive strength (67.04 MPa) was obtained at a temperature of 60°C. However when the geopolymers sample cured at temperature more than 60°C, the compressive strength decreased. From the FTIR spectra, the higher content of Si on sample cured at 60°C also contributed to higher compressive strength. Moreover, SEM analysis showed a denser matrix as well as less unreacted fly ash of the sample cured at 60°C compared to other temperatures.
Description: Link to publisher's homepage at http://www.journals.elsevier.com
URI: http://dspace.unimap.edu.my:80/xmlui/handle/123456789/41481
???metadata.dc.identifier.doi???: doi:10.1016/j.phpro.2011.11.045
ISSN: 1875-3892
Appears in Collections:Zarina, Yahya
Kamarudin Hussin, Brig. Jen. Datuk Prof. Dr.
Mohd Mustafa Al Bakri Abdullah, Dr.
Khairul Nizar Ismail, Prof. Madya Dr.

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