%0 Journal Article
%T Fly Ash Porous Material using Geopolymerization Process for High Temperature Exposure
%A Mohd Mustafa Al Bakri Abdullah
%A Liyana Jamaludin
%A Kamarudin Hussin
%A Mohamed Bnhussain
%A Che Mohd Ruzaidi Ghazali
%A Mohd Izzat Ahmad
%J International Journal of Molecular Sciences
%D 2012
%I MDPI AG
%R 10.3390/ijms13044388
%X 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 ˇăC up to 1000 ˇăC. 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 ˇăC for one day and the geopolymers samples were sintered from 600 ˇăC to 1000 ˇăC 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.
%K geopolymer
%K pozzolanic material
%K thermal analysis
%U http://www.mdpi.com/1422-0067/13/4/4388