The effect of curing temperature on physical and chemical properties of geopolymers

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Show simple item record Mohd Mustafa, Al Bakri Abdullah Kamarudin, Hussin Mohammed Amjad, Hussain Khairul Nizar, Ismail Zarina, Yahya Rafiza, Abdul Razak 2016-05-09T01:57:19Z 2016-05-09T01:57:19Z 2011
dc.identifier.citation Physics Procedia, vol. 22, 2011, pages 286-291 en_US
dc.identifier.issn 1875-3892
dc.description Link to publisher's homepage at en_US
dc.description.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. en_US
dc.language.iso en en_US
dc.publisher Elsevier BV en_US
dc.relation.ispartofseries 2011 International Conference on Physics Science and Technology;(ICPST 2011)
dc.subject Compressive strength en_US
dc.subject Curing temperature en_US
dc.subject Fly ash en_US
dc.subject FTIR en_US
dc.subject Geopolymer en_US
dc.subject SEM en_US
dc.title The effect of curing temperature on physical and chemical properties of geopolymers en_US
dc.type Article en_US
dc.identifier.doi doi:10.1016/j.phpro.2011.11.045
dc.contributor.url en_US
dc.contributor.url en_US

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