Development of Geopolymer Systems for High Temperature Applications
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Geopolymers are amorphous, inorganic structures based on silicate and aluminate tetrahedrons and could be beneficial in thermal and fire resistant applications. The outcomes from this work suggest that fly ash geopolymer composites suitable for thermal applications can be produced. When compared to OPC based systems geopolymers showed extended thermal resistance (from 500 °C to 800 °C). Improved thermal properties were achieved with increases in compressive strength after firing to 1000 °C and the near elimination of expansive events at high temperature.
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Subaer (2004)Inorganic geopolymers or simply geopolymers based on silico-aluminate are relatively novel materials with a wide range of potential applications. The mAln purpose of the present study was to experimentally investigate the ...
Vickers, Les; Rickard, William D.A.; van Riessen, Arie (2014)Strategies to control thermally induced shrinkage in fly ash based geopolymers are investigated. The useof low (<2) Si:Al ratios in the geopolymer provides superior thermal properties and the addition of fillers delivered ...
Rickard, William; Borstel, C.; Van Riessen, Arie (2013)This paper presents a study on the thermal behaviour of fly ash geopolymers that have been pre-treated prior to thermal exposure. Thermal and mechanical analysis was conducted on geopolymers that were leached in water and ...