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The Effect of KOH Concentration on Setting Time and Compressive Strength of Fly Ash-Based Geopolymer

Rahmiati, Tia and Mohd Azizli, Khairun Azizi and Man, Zakaria and Ismail, Lukman and Nuruddin, F (2014) The Effect of KOH Concentration on Setting Time and Compressive Strength of Fly Ash-Based Geopolymer. [Citation Index Journal]

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Abstract

Geopolymer is produced from the alkali activation of materials rich in Si and Al such as fly ash. Sodium hydroxide (NaOH) with high concentration is normally used in geopolymerization. Limited research has been done with low concentration of alkali activator. This study confirms that KOH with low concentration affect the setting time and compressive strength of geopolymer in order to have good mechanical properties. Optimum result was observed at 4.5 M KOH. This result can be further developed to produce geopolymer with low alkaline activator for coating applications.

Item Type:Citation Index Journal
Subjects:T Technology > T Technology (General)
T Technology > TP Chemical technology
Academic Subject One:Academic Department - Chemical Engineering - Material Development
Departments / MOR / COE:Departments > Chemical Engineering
ID Code:11336
Deposited By: Prof Ir Dr Muhd Fadhil Nuruddin
Deposited On:13 Oct 2014 02:52
Last Modified:13 Oct 2014 02:52

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