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Int. J. Mol. Sci. 2012, 13(4), 4388-4395; doi:10.3390/ijms13044388

Fly Ash Porous Material using Geopolymerization Process for High Temperature Exposure

1
School of Material Engineering, University Malaysia Perlis (UniMAP), P.O. Box 77, D/A Pejabat Pos Besar, Kangar, Perlis 01000, Malaysia
2
King Abdul Aziz City Science & Technology (KACST), P.O. Box 6086, Riyadh 11442, Kingdom of Saudi Arabia
*
Author to whom correspondence should be addressed.
Received: 13 January 2012 / Revised: 24 February 2012 / Accepted: 19 March 2012 / Published: 10 April 2012
(This article belongs to the Section Material Sciences and Nanotechnology)
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Abstract

This paper presents the results of a study on the effect of temperature on geopolymers manufactured using pozzolanic materials (fly ash). In this paper, we report on our investigation of the performance of porous geopolymers made with fly ash after exposure to temperatures from 600 °C up to 1000 °C. The research methodology consisted of pozzolanic materials (fly ash) synthesized with a mixture of sodium hydroxide and sodium silicate solution as an alkaline activator. Foaming agent solution was added to geopolymer paste. The geopolymer paste samples were cured at 60 °C for one day and the geopolymers samples were sintered from 600 °C to 1000 °C to evaluate strength loss due to thermal damage. We also studied their phase formation and microstructure. The heated geopolymers samples were tested by compressive strength after three days. The results showed that the porous geopolymers exhibited strength increases after temperature exposure. View Full-Text
Keywords: geopolymer; pozzolanic material; thermal analysis geopolymer; pozzolanic material; thermal analysis
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Abdullah, M.M.A.B.; Jamaludin, L.; Hussin, K.; Bnhussain, M.; Ghazali, C.M.R.; Ahmad, M.I. Fly Ash Porous Material using Geopolymerization Process for High Temperature Exposure. Int. J. Mol. Sci. 2012, 13, 4388-4395.

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