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|Title: ||Influence of activator composition on the properties of calcined kaolin geopolymeric powder|
|Authors: ||Liew, Yun Ming|
Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.
Mohd Mustafa Al-Bakri, Abdullah
Luqman, Musa, Dr.
Khairul Nizar, Ismail, Dr.
Che Mohd Ruzaidi, Ghazali, Prof. Madya
Cheng Yong, Heah
|Keywords: ||Geopolymeric powder;Calcined kaolin;Geopolymers;Waterglass/sodium hydroxide ratio|
|Issue Date: ||18-Jun-2012|
|Publisher: ||Universiti Malaysia Perlis (UniMAP)|
|Citation: ||p. 297 - 304|
|Series/Report no.: ||Proceedings of the The 2nd International Malaysia-Ireland Joint Symposium on Engineering, Science and Business 2012 (IMiEJS2012);|
|Abstract: ||This paper studied the influence of activator composition on the properties of calcined kaolin geopolymeric powder. The alkaline activation of calcined kaolin was performed in mixture of waterglass liquid and NaOH solution at ratios ranged between 0.12 – 0.28. The activator modulus (SiO2/Na2O ratio) calculated from the mix composition were in range of 0.17 – 0.38. The results showed that the waterglass liquid/NaOH ratios peaked at 0.20 and dropped for any increase in this ratio. The bulk densities results were consistent with the compressive strength measured. Bulk densities values of resulted geopolymer paste were quite low, which were between 950 kg/m3 to 1050 kg/m3. The H2O/Na2O molar ratio has significant effect on the bulk density and thus affecting the compressive strength of the resulted geopolymer paste. The microstructure revealed the densification of the structure after the addition of water and more intervening structures were observed in microstructure of resulted geopolymer paste with waterglass/NaOH ratio of 0.20.|
|Description: ||The 2nd
International Malaysia-Ireland Joint
Symposium on Engineering, Science and Business 2012 (IMiEJS2012) jointly organized by Universiti Malaysia Perlis and Athlone Institute of Technology in collaboration with The Ministry of Higher Education (MOHE) Malaysia, Education Malaysia and Malaysia Postgraduates Student Association Ireland (MyPSI), 18th - 19th June 2012 at Putra World Trade Center (PWTC), Kuala Lumpur, Malaysia.|
|Appears in Collections:||Kamarudin Hussin, Brig. Jen. Datuk Prof. Dr.|
Che Mohd Ruzaidi Ghazali, Assoc. Prof.
Luqman Musa, Dr.
Khairul Nizar Ismail,Associate Professor Dr.
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