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Processing and characterization of fly ash-based geopolymer bricks

Wan Ibrahim, Wan Mastura and Abdullah, Mohd Mustafa Al Bakri and Sandu, Andrei Victor and Hussin, Kamarudin and Sandu, Ioan Gabriel and Ismail, Khairul Nizar and Abdul Kadir, Aeslina and Binhussain, Mohammed (2014) Processing and characterization of fly ash-based geopolymer bricks. Revista de Chimie, 65 (11). pp. 1340-1345. ISSN 00347752

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Abstract

Utilization of fly ash as a raw material for geopolymer brick production seems to be a logical solution that allows for the conservation of natural resources, abates further pollution and preserves the environment. Fly ash-based geopolymer have been studied by several researchers worldwide for several decades due to their excellent mechanical properties. This study has been conducted to produce fly ash-based geopolymer bricks by means of pressure forming without firing procedure and low energy consumptions. The experiments were conducted on fly ash-based geopolymer bricks by varying the ratio of fly ash-to-sand (1:2 - 1:5, by mass of ratio), curing time (1 - 24 h) and curing temperature (room temperature - 80°C). Compressive strength up to 20.3 MPa was obtained by curing at 70 °C for a period of 24 hours at 60 days of ageing. The density of geopolymer bricks ranged between 1800 Kg/m3 to 1950 Kg/m3. The microstructure properties of fly ashbased geopolymer bricks were investigated by using XRD and SEM analysis.

Item Type: Article
Uncontrolled Keywords: Fly ash; bricks; geopolymer; mechanical properties; microstructure
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
Divisions: Faculty of Civil and Environmental Engineering > Department of Water and Environmental Engineering
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 29 Aug 2019 03:41
Last Modified: 29 Aug 2019 03:41
URI: http://eprints.uthm.edu.my/id/eprint/11445
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