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Influence of foaming agent/water ratio and foam/geopolymer paste ratio to the properties of fly ash-based lightweight geopolymer for brick application

Wan Ibrahim, Wan Mastura and Hussin, Kamarudin and Abdullah, Mohd Mustafa Al Bakri and Abdul Kadir, Aeslina and Deraman, Laila Mardiah and Sandu, Andrei Victor (2017) Influence of foaming agent/water ratio and foam/geopolymer paste ratio to the properties of fly ash-based lightweight geopolymer for brick application. Revista de Chimie, 68 (9). pp. 1978-1982. ISSN 25375733

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Abstract

Nowadays, the demand for lightweight building materials has been growing worldwide. This paper presents an investigation on the use of waste materials of fly ash as a source materials for the production of lightweight geopolymer by using foaming agents. The key properties for the foamed geopolymer namely density, compressive strength, and water absorption were investigated. The chemical composition of materials and morphology analysis were studied to find the microstructure properties of foamed geopolymer. The foamed geopolymer were prepared by combination of 12 M Sodium Hydroxide (NaOH) solution and Sodium Silicate (Na2SiO3) solution. The ratio of Na2SiO3/NaOH and ratio of fly ash/alkaline activator were kept constant at 2.5 and 2.0, by mass respectively. The effect of different ratio of foaming agent/water and foam/geopolymer paste were investigated at 7 days of ageing and cured at 80°C for 24 hours. In general, the results showed that the fly ash-based lightweight geopolymer has good potential as brick application.

Item Type: Article
Uncontrolled Keywords: Lightweight brick; geopolymer; foaming agent/water ratio; foam/geopolymer paste ratio
Subjects: T Technology > TP Chemical technology > TP1080-1185 Polymers and polymer manufacture
Divisions: Faculty of Civil and Environmental Engineering > Department of Water and Environmental Engineering
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 11 Feb 2019 00:51
Last Modified: 11 Feb 2019 00:51
URI: http://eprints.uthm.edu.my/id/eprint/10554
Statistic Details: View Download Statistic

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