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dc.contributor.authorOmar A., Abdulkareem
dc.contributor.authorMohd Mustafa Al-Bakri, Abdullah
dc.contributor.authorKamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.
dc.contributor.authorKhairul Nizar, Ismail, Assoc. Prof. Dr.
dc.date.accessioned2014-03-06T04:43:32Z
dc.date.available2014-03-06T04:43:32Z
dc.date.issued2013
dc.identifier.citationAdvanced Materials Research, vol. 795, 2013, pages 201-205en_US
dc.identifier.isbn978-303785811-0
dc.identifier.issn1022-6680
dc.identifier.urihttp://www.scientific.net/AMR.795.201
dc.identifier.urihttp://dspace.unimap.edu.my:80/dspace/handle/123456789/32389
dc.descriptionLink to publisher's homepage at http://www.ttp.net/en_US
dc.description.abstractThis paper represents the mechanical and microstructure changes in geopolymeric material synthesized by the alkali activation of locally source fly ash at high temperatures of 400, 600 and 800 °C. The high compressive strength of geopolymer cured at 70 °C underwent thermal shrinkage and substantial strength losing at temperatures of 400, 600 °C caused by the high dehydration of the structural water. Exposure to temperature of 800 °C, the geopolymer lost its strength due to extremely densification and expansion processes of the high unreacted silicate phase in the structure. The SEM results showed that the high activator content generated large quantities of unreacted silicate crystals at high temperatures which sintered at range of temperatures of 700-800 °C causing system failure.en_US
dc.language.isoenen_US
dc.publisherTrans Tech Publicationsen_US
dc.subjectElevated temperaturesen_US
dc.subjectGeopolymeren_US
dc.subjectSEMen_US
dc.subjectStrength lossen_US
dc.subjectThermal shrinkageen_US
dc.titleAlteration in the microstructure of fly ash geopolymer upon exposure to elevated temperaturesen_US
dc.typeArticleen_US
dc.contributor.urleng.omar83@yahoo.comen_US
dc.contributor.urlmustafa_albakri@unimap.edu.myen_US
dc.contributor.urlvc@unimap.edu.myen_US
dc.contributor.urlnizar@unimap.edu.myen_US


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